I wouldn't discourage you, though perhaps this is because that's not exactly the same thing. Like I said, generalizations aren't bad to keep in mind. The seat you choose on a train is your discretion, and a stranger with features indicative of someone who might give you a hard time is a fair thing to gamble against. But you wouldn't be generalizing them themselves. I too am LGBTQ+ (via asexuality) and would jump at the opportunity to avoid many seeming incels or radical feminists (to use two examples, and not judging radical feminists themselves, many just clash with the sphere of asexuality) if I were choosing something like workmates, but I wouldn't do anything to verbally single them out based on things about those individuals I have not confirmed, such as making inclusion harder for them. In fact, if I had to choose either "innocence" or "guilt" as an emergency default, I'd choose innocence.