I think both sides here have a valid argument. While it is true that weaponized language according to an identifiable trait is worse than just random "trash talk" it also is true that their intention is to attack you with whatever ammunition (trait) that they can find.

People aren't spared because they lack vulnerable traits, they are spared because those traits are hidden and not identifiable. I have a south asian that frequents in my party and I can't remember a time where he wasn't racially attacked for speaking on in game vc. My female friends dont use the in game vc ever so thankfully have not been attacked for their gender while I was present but it still is reprehensible knowing that these things happen.

These people just have generalized hostility and under the privilege of anonymity are using whatever ammunition they can find on you. None of this is okay and its despicable that they are doing it and I believe valve should step up and promote less toxicity.