Hey, have you considered doing some pacifist runs/playthroughs in games your own? That might be a neat new way for you to experience them, given you recent mood. And if that is not an option, I think it's worth to take a look at indie game scene, there's bound to be something you can roll with.
Now that I am thinking about it, even in mainstream you can have a racing and sports games, that doesn't require killing your enemies. We are on a RPG forum though, so I don't really expect for it to go anywhere.
Answering your question, it is only natural for our tastes to shift and change as we age. Myself, I am not fond of first-person shooters for a while. As a kid I used to play platformers a lot, but that's not the case anymore. As for killing enemies and combat in videogames, my general stance shifted a bit. As a kid, in general, I liked the fantasy of being a hero and beating crap out of evil. Nowadays, I see enemies in games as part makes gameplay work. If enemies are not challenging, beating them offer you nothing, not even a satisfaction, then they are pointless. If slaying enemies is way too rewarding, the game loses friciton, balance and becomes too easy.
I also have one unpopular opinion about "trash mobs", and that is that they are welcome to make the game's world lived in, and also to make you do anything other than rushing straight to the goal. Two examples. First, on the world lived in, let's take Baldur's Gate 3. Despite my disposition to the game, I can easily praise it for combat encounter being thought out in a manner similar to what DM might do. Unfortunately, the figurative DM lacks any capability to impovise - there's no random encounters whatsoverer, and because of that, whenever I needed to backtrack somewhere, the world in this allegedly rich RPG game seemed dead and hollow. This is the great segway to the next example: Dark Souls is the game many people play basically as a boss rush, while not engaging with basic enemies and envoirment, which is a shame - the level design in the first game is geniuely good, and later on offers challenges to offset player's eventual overleveling. Running through it all, enemies included, makes entire experience shallow.