Yes LGBT people should dispassionately discuss with homophobic and transphobic folks by rationally engaging them in the marketplace of ideas.
"You know, you think my sexuality is an abomination that should not exist and I will go to hell, but have you ever considered that - hear me out - this could not be the case? Do you have any data to back this up? Aren't you falling into an ad hominem fallacy?"
"Ah right, you have correctly pointed out a gaping hole in my otherwise excellent deductive reasoning. I hereby bow to your argument and am not homophobic anymore."
And once again, the power of rational debate shines through and through.
"You know, you think my sexuality is an abomination that should not exist and I will go to hell, but have you ever considered that - hear me out - this could not be the case? Do you have any data to back this up? Aren't you falling into an ad hominem fallacy?"
"Ah right, you have correctly pointed out a gaping hole in my otherwise excellent deductive reasoning. I hereby bow to your argument and am not homophobic anymore."
And once again, the power of rational debate shines through and through.