Everyone but faggots and libtards know that sexual attraction if fluid. Actually, they know it to, they're just perverts and liars.
First, even if conversion therapy were effective, I'd count on libtards to still insist it's not, and also to try to ban anyone from trying (because libtards are fascists). Second, I also would expect a low success rate of conversion therapy. It's like weight loss diets, criminal reform, etc. are highly unsuccessful, even though we know it's possible for people to lose weight or for people to stop being criminals (for reasons than getting too old to mug others).