We probably need to straight things out here (excuse the pun), we're not saying there should be hardcore man on man, hot oily action on Sesame Street, we're saying that occasionally, if a character was seen to have two moms, or two dads, that might help kids in not being freaked out by the concept later in life.
I'm sure the lessening of racism is in some small part down to kids seeing presenters of all races on TV, and thus not being shocked when they see a black or asian person.
I'm also in agreement with Mims above, we need quit pandering to the eight people who phone up and complain they were offended, when it's a show seen by 10 million people.
Considering it takes effort to bother complaining, maybe 1000 complaints about a show watched by 10 million, would mean there was a reason to look into the complaints at least, but I should say, NOT if some news station or paper has gone to the trouble of desperately rerunning the 'offensive part' to drum up more whining.