You might not have realised lesbianism was a problem. That's why we should be thankful to geniuses like Usher, who not only has decided that it's down to a shortage, but also believes that he has answer. He would be the answer:
If only there were a few more Ushers around, there might be no need for women to be gay at all. Simple!
Of course, the only flaw in his plan is Usher is so wonderfully wonderful, he's going to not just attract women, but men as well. They won't be able to resist his charms. And with men lost to Usher love, women will be back to square one.