The quote there implies that there are cultures out there not Western where there's no (or much less) nastiness, no persecution, and no marginalization. Where is this wonderful culture?
Nastiness, persecution and marginalization are human traits. Across the board. We've got people from all over the world here attesting to the difficulties of all three in the trans experience (and receiving bad treatment from both sexes). Western culture is one of the kinder cultures to the likes of us. And to men and women as well.
When I keep seeing Western put specifically as a prefix when talking about how terrible culture or masculinity is, it is hard to see where this comes from without drawing my own conclusions, since there are lots of places it's worse to be male than here. Where masculinity alone can earn you a very early death, the life of a child soldier, a slave etc. or a life of continuous vocational obligations that would make the hardest working Westerner think his life's a holiday in comparison.