You can stand up for yourself without being a dick.
I am sure you can see the problem with setting a precedent that it is okay to be a dick because it feels good.
I am sure that if someone stops being a transphobe it is more likely due to this than because a trans person was a dick to them.
Just keep in mind the effects this may have and that they not not all be beneficial.
I just think that it is in your best interest not to give people the people who hate you more reasons to do so.