I am a white, cis/sys/sis/whatever straight male.
And it's no fun at all.
It's the perfect thing to be if you want to be a jerk. Everything is geared to help and protect you, but if you try to be a decent human being, that's where things get unpleasant quickly.
Firstly, everyone who shares your interests is a jerk, or more accurately, the VAST majority of them are. This is because they, like you, are at the top of the socio-economic totem pole, and want to stay there. So they are typically both socially and fiscally conservative dorks.
As such, everyone who isn't a straight, white, cis male hates them. And by extension, YOU.
It gets really, really old, having people attack you or mistrust you over and over again without end. And yes, I understand the irony. I get it. But it feels very alienating. VERY. And it's also hypocritical as all hell. I'm not supposed to treat you a certain way but you can treat me however you want? That is BS.
So you wind up walking away from those communities, because you share NOTHING in common with them, and they treat you badly.