Too often these days it seems 'but my escapism!' is used as an excuse to shut down discussion. You can't point out, say, sexism, because it's escapism. You can't put that character in there, because that damages escapism. Never mind that my escapism involves having a world I'd actually like to escape to; never mind that keeping minorities out means in the real world they're being told "hey, we don't want for you to be able to share our fantasy, because then we'd have to remember you exist and that makes us uncomfortable." 'My escapism is more important than your escapism' in other words. It's a really frustrating sort of exclusion because it's frequently delivered with a side order of 'You're taking this way too seriously.' And a nice condescending dollop of 'Well, it's not real' on top.