In ten years we are going to get stupid threads about how games in this generation were better because the young gamers growing up now will be blinded by nostalgia in ten years time. "Nothing is as good as it was when I was a kid." Yeah that's because you were a fucking kid. Games are more than just how hard they are. There are games that revel in it like the Souls series but people also play games for the power fantasy, the story, the characters, the multiplayer, etc. There is a lot more to video games. If you want it to be harder then tweak the difficulty or play games that were made expressly to make you want to throw your controller. Not all games are geared towards you but there are some fantastic ones that are. So get over it and play those.
I feel like this argument would be better phrased in terms of the depth of modern games, not necessarily difficulty (though they're related). Difficulty based on depth is what is important. Difficulty settings won't make a game any more deep, unless they're specifically designed to do more than adjust armour, health, and damage. And I fail to see how modern game design is intrinsically better. Restricting the scope to mainstream developers, I see a major contraction of genre to action games or action games masquerading as other genres. And it's nonsense to say gaming is more varied now. Are you kidding me? RPG genre: dead. Adventure genre: dead. Turn-based strategy: dead. Staples like space sims no longer extant. Puzzle games and strategy games marginal.
So I guess Tell Tale, Nis, Atlus, From Soft, Valve, and numerous other companies don't exist at all or make those games any more. Amazing that Call of Duty and Assassin's Creed wiped them off of the face of the planet. No games like that exist at all anymore.