Hardcore gamer = someone who plays only cinematic grizzed white dude games and/or military fetishizing FPS
Casual gamer = anyone that is not a 15-25 yo male, and/or plays anything outside of the previously mentioned games, especially if those games are colorful.
So basically the gaming community is full of gatekeeping, misogyny, toxic masculinity and general chuddery. They make sure they're the loudest voice heard when anything about games is talked about, and won't be happy until all games a homogenous stream of bland, hyper-realistic but with a grey filter slog of mindless action with no heart or soul. And don't you dare force them to read any dialogue or story.
Both the Smash and Zelda fandoms have plenty of toxic chuds like yourself, ones that show up out of nowhere to concern troll and vomit ableistic bullshit if they feel like their treat is endangered by discussion of it that isn't 100% support of the status quo.
Oh yeah, totally no toxic bullshit in the Undertale fandom, either. Never ever.
As an Undertale enjoyer, I can acknowledge that toxic fandom being a problem, unlike you.
Go away.