It's true everything now incorporates RPG elements, I'm not so sure about how mainstream RPGs are though. It certainly is much more mainstream than when BG:2 came out, make no mistake.
Skyrim and Fallout, The Witcher and Cyberpunk 2077, Dragon Age and Mass Effect, various MMORPGs but especially WoW, Final Fantasy and Kingdom Hearts, Assassin’s Creed (which has apparently gone full RPG), Pokémon (the single highest grossing media franchise in history).
RPGs have become as mainstream as superheroes, Star Wars, epic fantasy, and all of the other bits of what was once nerd culture and is now just pop-culture.
