Toxicity warning,

I said "good game" at the end of the match to my team which I believed was just some nice gamers and I'd been joking with the whole time, but my brimstone who didn't comm the whole time shouts out just before we exit "You sound like you're f*ing trans".... What?? Every single game I get asked if I'm a female, a little boy, what my gender is, etc. I just don't understand why people ask so much and why lower pitched female voices attract so much hostility from these people. I feel like this is the thing I get harassed over the most. It makes it really hard to enjoy this game and trust the community.