Eventually people realize that if your ideas can stand on their own merits you don't need to.
Try this response to Krissy; its not great but maybe you can take something from it:
I am sorry for apparently offending you by offering my opinion on Prop 8. I come from a long line of Americans that believe that the free exchange of thought through polite discourse is an essential element of our democracy; and that when these ideas compete for acceptance "full and free discussion exposes the false, encourages the testing of our own prejudices and preconceptions... and keeps a society from becoming stagnant"[1]. The willingness of either side to debate an issue is an admission that ones views might be wrong or incomplete, which can sometimes be hard to do; but a belief that cannot be defended is not worth holding. When you offered your own opinion in public forum and started this debate I understandably recognized this as an invitation to join with you in this discussion, to further both our understandings of this issue and 'reduce our prejudices and preconceptions'. I won't make this mistake in the future.
[1] Justice Douglas' dissent in Dennis v. United States, 341 U.S. 494, 584 (1951)
-paridel
“I come from a long line of Americans that believe that the free exchange of thought . . .”
Brilliant response!