Fighting fascism is something I personally think should be on everyone's agenda (obviously not with violence), but I can understand if its too provocative for a store page. Thanks for the tip, I will try and see if removing it will help.
Honestly, I disagree with removing it. I'd leave it there. If it's core to your game's message, which it seems like it is, I don't think it would really be beneficial to hide it; it's going to become obvious pretty quickly once somebody starts playing. Someone who is turned off by that would just stop playing right there anyway, but putting it right up front might actually garner more interest. If you feel strongly about it, then if anything, double down on it. This is your game and your creative vision, after all.
I do think the #fightfascism hashtag is unnecessary since that's purely a social media thing, but you could call the game KILL ALL FASCISTS and I wouldn't think it's too much. Of course, others' mileage on that may vary.