Toxicity is the defining characteristic of online gaming communities for ~25 years now. If you decide to work in that industry you shouldn't be surprised by it.
Not a reason to not wish for a different environment around gaming communities. Just sitting around thinking „always has been that way“ is not the way to change anything about the situation at all.
I mean, it's not exactly a defining feature. It's not a prerequisite for someone to be an asshole in order to be a gamer. It just happens that a bunch of people are toxic and a also play games.