It depends on the game and if it's detrimental to other players. (in most cases easy modeis OK)
We all have different abilities and mindsets and its nigh on imposible to make games that cater to everybody. Many AAA devs go the easy route and make their games for casual gamers (ie many normal modes are easy compared to what they were like over a decade ago).
Personally i'm not against easy mode but I would like to see more single player games that are aimed for more serious players who are feeling rather left out by modern game design doctrine that considers it a sin for even one person to hit a brick wall and never experience all the content.
The main thing that spoils challenge gaming is that many games have a easy way out. Be it easy mode, even worse that you change without restarting the game, save scumming and checkpoints every 30 seconds, pre-order and dlc weapons that are unbalanced and OP, linear corridors with minimaps and every little thing signposted, Half the campaign a tutorial mode rather than its own separate thing like in the past. Long unnecessary stories with lots of cutscenes in hardcore action games.
While all these are great for casual players its ruins it for challenge gamers they want a game to punish them since its their own little mountain to climb.
Thats not to say games aimed for those players can't have easy modes and good difficulty scaling. Arcade genres have had them for years but those are still aimed for challenge gamers not so much casuals.
For example the shmup Jamestown is aimed at noob players with 5 modes of difficulty but the last 2 stages are locked for very easy mode, and the final stage is locked for easy aswell. This forces players try harder and improve to beat the game. Most players really liked this feature because it gave them a feeling of accomplishment, while ppl who hated its spent more effort ranting at steam forums than playing the game calling the devs cheap and elitist.
I think the biggest problem when it comes to difficulty is that very little is said about it. Reviewers and game sites usually ignore it because they are too focused in getting it written asap, low skilled casuals themselves or only consider value for money in a game, where easy games with lots of content is a good thing compared to something like a short game that's well balanced, hard and not everybody can beat.
I feel that if more reviewers did their jobs better casuals wouldn't feel ripped off with Dark Souls and Hardcore gamers would feel the same when they buy a hyped game that sucks for their playstyle.
TLDR more games that are aimed at different players with different abilities and not half arsed games that are aimed for everyone.
I usually play on Normal Mode, even if it's too easy, I want to experience the game as the developer intended, if I play it again i'll bump up the difficulty.