Everyone occasionally feels a temptation to do something that is wrong, a good person is one who recognises these temptations for what they are, and ignores them. Of course, focussing on God and praying reduces the amount of such temptations that you feel.
All sins are crimes against God and some are crimes against other men, if you are saying that anyone who has committed homosexual acts should kill themself, where do you stop? Should liars kill themselves?
Should blasphemers kill themselves?
I could go on...
Having felt an attraction to someone of the same gender is not a reason to kill yourself, as long as you recognise such a thought as evil and do not in any way act on it, you have not done anything wrong.
Even if you have done something wrong, it is still not a reason to kill yourself, in killing yourself you would be doing something else wrong, two wrong things do not cancel out.
If you have done one thing wrong, the important thing is to recognise it as wrong, the repent and to endeavor not to do it again, killing yourself gets you no where.
Everyone in this world has done many many many things wrong, if all "sinners" were to kill themselves, the population of this world would be zero.
No one has the right to say that they are better than anyone else, we are all guilty of sin.
fake plastic trees, stop judging people, and, if this is your idea of a joke, just get lost.