My bad. You say you know many women professing to be lesbians, all of whom were sexually abused as very young children. Have I now accurately restated your comment?
How many is many? 20, 30, 250?
How is it that you were able to discover the sexual abuse of so many lesbian women? Are you a priest, a shrink? If you have discovered such a thing as this, I'd think we'd see your name in a peer-reviewed scientific journal, not an anonymous post on an internet forum. Pardon my skepticism, but is so much around here stated as categorical fact, when, in fact, it is opinion.
If I had to estimate a number, I'd say around 70.
It is no trick to "discover" the abuse. All you have to do is talk to them.