Quote from Grixh »Quote from Flisch »Excuse me but demanding people to play with you under the threat of calling you a gatekeeper is kind of insane. Playing a game is still a consentual act.
I have no intention to play with superman and gandalf and captain kirk in a magic game. Calling people gatekeepers because they choose what and how to enjoy their entertainment is pretty digusting. You're not entitled to playing with me and I reserve the right to spend my free time however I choose.
I generally figure that it's your deck, your rules. This is why I really wish they'd commit alternate names for MtG stuff - people can play with the other IP stuff, but those that would rather not have MtG themed versions to use. Some people don't like foils, but demanding that other players don't play foils against them would be pretty weird. Maybe your playgroup could have a no foils rule, but if some random person shows up at the game store, it'd be pretty weird to walk away from a casual game because they brought their shiny Mountains.
By banning or tuning away new players who don't know anything about magic, from the game to the why the IP stuff might rub people the wrong way, that is gatekeeping, its toxic and bullying and it already a major issue with drawing in new people.
Why not to sit down the new player, explain to them why you have a issues with the crossovers and offer to help them build a deck that dosnt have the cross over stuff in it? I personally have a number of decks that I'm happy to lend to newbies just waning to play. Why not offer that instead of possible turning off someone from magic?