You are correct in that, I suppose I phrased it in a bad way. I'm part of many fandoms full of gatekeepers and less than nice people who I could call many things, and it just seems so ultimately pointless. People are going to enjoy what they enjoy, even if they're pushed out of the community, I don't see the point in that regard, in trying to feel superior by saying "you can't engage with us because you like this thing I like in a way that's different than the way I do."
I got into Touhou because of the gacha, ultimately. I had interest before, but the gacha made me take the dive, and I've still got a lot to explore but I'm loving every second of it. I won't let someone tell me I'm less of a fan of the franchise just because I happened to have jumped in because of a mobile game. That would just be ridiculous.
I think the bottom line of this entire thing, is that bad fans exist, but those bad apples (pun intended) should be tossed aside for the people that actually bring something to the table for the fandom as a whole. Even if that something is as small as a smile on the face of another fan, or a thought provoking discussion.