I find a lot of this particular blog a bit off pace, to be honest. At the end of the day, power and privilege is not ever afforded to individuals within a culture, only groups within a culture. What happens in the group environment (which universally tends toward extremes) is that the primary members of those groups (ie. nerds and geeks are, by and large, white male individuals, at least at first this was the primary group) become the stereotype that the group identifies with. So of course you see the group as a whole finding that as the archetype and anything that does not fit into that archetype is up for criticism of some sort. People will always identify with a given set of individuals who are the primary and most powerful members of a group.
Also, love how racism makes it's way into the conversation. Racism is definitely a thing that happens and in some areas it's rampant and in some places it's non-existent. That is the world we live in, it's definitely terrible. But... I have noticed that things identified as racism are not always actually racism. There is such a thing as implicit egotism. I have met maybe 2 non-white people (I'm from NJ, we are super diverse here) in my life that fit into the whole nerd/geek "culture" (used very loosely). I can't blame any non-white for not wanting to be a member of that group as there exists an environment that they may not be comfortable in due to implicit egotism. It's one of those things that are ingrained into our very biology and the fact that people are pack animals. My point in this that bringing up "white male" as being a primary group identifier and by extension one of the problems with the "culture" because it's obviously racist is probably not the case in most instances.
Let's talk about sexism. Sexism is an issue. But it typically is not an issue with a lot of people. A minority of members of any groups that are male-centric will be truly sexist, heinous, deserving to punched in the gut, sexist. The issue is that stupid people are not afraid to give their stupid opinion. And they are stupidly proud of it on many occasions. Because some idiots cat call cosplayers doesn't not make the entire group of people who identify with them actually sexist. I have seen very few occasions where that happens and the surrounding audience is not generally disgusted by the display. I bring this up simply because small numbers of individuals cannot be controlled by anyone unless they are doing something illegal. Cat calling a girl or make rude comments is not illegal or punishable by any means other than social outcasting. That leads to them forming an even smaller more extreme group, unfortunately.
Lets discuss sex as a prize. Sex will always be a prize because of biology. The human brain may say, "I'm getting laid! WOO HOO!" The Biology sees it as a way showing worthiness to spread genetic material. No matter how much more "advanced" we are as a species or society or social group... we will always be slave to Biology. And yes, this is completely independent of the knowledge that you may be using contraception, it's deeper than that. Reproduction using genetic material is how all biological life on Earth does it, humans cannot be an exception to that rule (it's impossible as it turns out).
That said, my belief is that most individual men do not see sex this way. If we did we could not have female friends. We could not work next to women without having some sort of contempt towards them or seeing them as inferior in some way.. yet everyone I work with is fine with the women we work next too. My boss is a woman and we have nothing but respect for her. I am in a wonderful relationship. My friends are married to wonderful women who we all respect and love. My point is simply that sex as a prize, while it does exist, is not indicative of a social problem that any but a small minority of men suffer from. Also, in the interest of equality, sex as a prize tends to be a two way street. I have known women in the past who saw sex as a prize. But just like the men with this issue are not in my social circles, neither are the women.
TL;DR - The issues tend to be due to overall group mentality. Some people are terrible that are completely guilty of the things stated in this opinion piece. But most people do not. Groups will always tend towards extremes, leading to group fracturing into smaller groups. As an example, I love videogames (clearly, I'm here aren't I?), but that is the sole thing I have in common with many who come to this site. We have that in common, we can talk about that, everyone is happy. But moral opinion pieces such as this just rub me the wrong way. We should all try to fix a problem when we see it, the issue is that I mostly don't see the problem that is discussed here. At any Comicon I have been to, I have never seen any cosplayer objectified as a sex prize. I have never seen any individual excommunicated or looked down on because they don't fit the rest of the groups race/sex/ethnic background. The issue for me is that Bob loves to say, "Look at what this group does... you are part of the group? Look at what you are doing!" Only, I don't identify with any group in particular so much as a group identifies with me. I don't like video games and comic books because the group likes it, I just like them. They aren't perfect, like anything with immense growth potential, they have a lot of problems and things to figure out.
The belief is that since I like these things, I am part of that group, and I am guilty of what the overall group is doing. Only, I'm technically part of many groups (like everyone). I prioritize fitness and health in my life. I will universally skip playing games in favor of going to the gym. I am working on my deadlift and am almost at the 500 lbs mark. Does that make me "meat head"? I would say yes, or at very least a "bro", which is universally despised by geek/nerd "culture" despite the similarities. But then my second biggest priority in life as an adult male is education. I read books almost exclusively about science, I subscribe to both Scientific American and their Mind publication. I read books on psychology, physics, biology, geology... you name it. So I must fit back into the "nerd/geek" culture, only the overlap with other groups that they are definitively against is ridiculous. And in all of this I manage to not be racist, sexist, over privileged, or even disagreeable with the people I put myself around.
Edit: Bad rant, sorry. I didn't know I put so much, I'm that guy this time around I guess.