What do you think about this comment this christain posted on his video about homosexuality?

Being a homosexual IS a choice. People don't even think about sexual things or feel sexual until they hit puberty around 11-13. It is IMPOSSIBLE to be born homosexual. There is no such thing as a "gay gene". Check out the human genome project which sequenced the whole human genome and they found NO SIGN of a "gay gene". Feelings are often times just temptation. People can definitely be tempted to be a homosexual. But they don't have to give in to that temptation...''