So here, in long form, is why I don't worry about excluding the white cis straight male perspective (hereafter known as WCSMP) from my reading.
It's freaking everywhere else. I'm a comic book nerd and I watch prime time TV. The WCSMP is everywhere. I've identified as somewhere along the QUILTBAG spectrum since I was 17 years old, so the idea that mass media is primarily straight or female is not news to me; I'm only just in the past year being able to pull off my blinders and see how incredibly white it is. I'm working on educating myself about the issues that come along with the cis perspective; I fully admit that I'm actively learning on both of these fronts. Sometimes, I get offended at things that make my friends who are people of color shrug; sometimes, I have to ask (as politely as possible) for an explanation of why something hurts them, because I truly do not understand.
To truly exclude the WCSMP from my life, I would have to turn off the radio, throw out more than half my CDs, only watch TV for a couple of very specific hours, and basically never go on the Internet again. I'd probably also have to divorce my husband, and never ever leave my house.
Deciding to read more diverse books excludes the WCSMP in the same way that getting married kills off everyone else in the universe. I.e, it doesn't.
A long time back, I worked in a large chain bookstore as a manager. I had a customer approach me very aggressively, asking why the "men's studies" section in sociology was so small, while the "women's studies" section was so much larger.
I started by explaining to the customer that men's studies was, at the time, relatively new to the academic fields, and therefore there had been fewer books published. I pushed it off on the buyers, saying that at the store level we didn't have any power over which books came in and which didn't. I suggested that the best way to increase the size of the section was to buy books there, signalling to the buyers that the section was popular.
He greeted every single reason I gave him with "But, why?" in increasingly antagonistic tones. Eventually, I lost my patience, and said—not nicely, I can own—that by a certain set of logic, the politics, sociology, psychology, history, and about 8/10ths of the fiction section were men's studies, so perhaps he could find what he was looking for there.
He asked to see the manager, I told him I was the manager, he called me a derogatory slur and I asked him to leave the store. It was fun.
But I stand by what I said that day. There is approximately zero chance of me being able to leave the WCSMP behind in our current world. I'm okay with letting my reading focus in on women of color, diverse narratives, characters who struggle to find balance between their minds and their bodies, and stories that are not getting enough attention in the rest of the world. I'm not looking to burn the books of men who are white, cisgendered, and heterosexual. All I'm talking about is what I'm going to do; I committed to reading two books a month from women of color. I'm broadening my perspectives.
If you're unwilling to do that, maybe it's worth wondering if your world view is really that fragile.
image from Wikicommons