You do know that the anime niche isn't as big as you think it is. It may be basically your entire life, but that doesn't mean a lot of people in the world are actually part of it. There will be more people who don't know it than those who actually do. So saying "they have One Piece, Fairy Tail, DBZ, etc" means nothing when you compare it to the average potential sales of a more general company (say...WB or whatever other junk is in Hollywood too). Your comparisons and information doesn't mean much because you seem to fail to understand (or you just won't accept the fact that) anime is not a big part of the world (or not as big as you'd like to think it is).
Anime companies struggle just as manga companies do. Media Blasters struggled (if you recall, they did quite a bit of layoffs) and if they struggle, they don't have the money to do as much projects to the extent that they wish (plus, Funimation has delayed so many projects, which may or may not be related to financial related issues).
Funimation was close to shut down a few years ago (I'm not sure if you recalled, as their mother company, Navarre, was selling them and if they didn't get sold, they'd go bye bye). It is very likely that an anime production company can go out of business.
If I also recall correctly, a number of Japanese companies are preferring to do all of the releases themselves, cutting out the American companies. This also means less potential income for the American companies (which dubs animes).
The problems are so much more than you make it out to be. Also, my main point is, the niche for yaoi anime fandom here in America is so little, it is a complete waste of money to dub them. YOU might want to buy them, but that's you (and perhaps a few others, but not enough to get any company to actually care). The profits will not equal the losses, which means, as a business move, it's stupid.
"Jump start my heart and wake the sleeper inside" -Ignition (by TobyMac)