Do u know ALL those Afghani and Iraqis gays thrown from the roof might go to paradise for dying in a violent manner? There is no place in Islam where it says u can be violent on anyone. Period. Even an idol worshiper is worst than a homosexual, cannot be harmed.
I say leave the judgement to Allaah swt, Your creator knows more than mere simple humanbeing
But at the same time, u do have the right to say HOMOSEXUALITY IS A SIN! Period. No discussion.