Doing or saying nothing, if that were to happen, would make it a welcoming place for more of that garbage. Flies gather where no one cleans up the garbage piles, or shoos the flies away.
Gosh, I sure don't see it that way. I hang out here every day, and while there are a few angry anti-theists out there, they certainly are not the majority of us here.
For me personally, the only animosity I have, is for lies and liars. False information is something I strongly oppose, if you can't tell. I'm happy to support a Trump supporter, as long as they aren't spreading fake-news without fact-checking before posting.