Trust me, your stat is wrong. Lesbians make up about half of all homosexuals.
I'd sure like to see any evidence for your statement. All the studies I've seen, posted and archived report a lower rate for lesbians.
The latest and most accurate study cites 2.1% of the population is homosexual. It's slightly lower for homosexual women (1.4%) and slightly higher for homosexual men (2.8%). All percentages include bisexuals so for those exclusively homosexual it's even less.
Perhaps you read a stat wrong somewhere, for there are approximately half as many homosexual women as there are homosexual men.
Prove it.