I don't think it's a conspiracy. For years studies have pointed out this trend. Of course, there are so many variables like diet and lifestyle (that some posters have pointed out) that it's easy to discredit them. That's why in the end I rely on my personal experience - when I stopped eating meat 90% of my health problems went away. I went from sickly, anorexic, and chronically ill to a normal healthy person. Of course I had poorer health than average growing up, so anything I did wrong showed immediate effects, rather than showing up later in life as is the case with most people.
I think the fact most of the meat out there is garbage is a huge factor, rather than the eating of meat in general. The documentary "Food Inc" really shines a light on this. Almost all the meat we buy is laced with antibiotics, hormones, and ammonia, from animals fed unnatural corn-heavy diets. As a kid I ate chicken from my uncle's farm, 100% organic, and it didn't taste or look anything like you buy in the store. If no one told you otherwise, you would think the two were from completely different animals.
As far as eating meat being manly, I just don't see that connection. Don't grandmas and babies also eat meat? Some of the most jacked, alpha guys I know don't eat meat, or if they did avoid red & processed meat. Meanwhile, I went to a liberal arts college and didn't meat a single SJW who didn't eat meat. Anecdotal evidence, so take it as you will, but that's what I saw with my own eyes.
To each their own. I rarely mention this unless someone brings it up, and certainly don't go out of my way to tell people not to eat it. We choose our vices: as some posters and people in real life have told me, they don't care about any negative health effects because they enjoy eating it. I prefer to drink, and am under no illusions that will cut a few years off my life.
BBQ Pit Boys
vs
Frank Medrano, vegan bodybuilder