Go back and read her post and your reply. You attributed his racism and homophobia as principles that would make a person think they were a good Christian. Therefore all Christians, if they want to be good, should be racist and homophobic. Now, you can deflect and snark a reply to that statement but in the end what you said was incredibly stupid.
I won't even touch on the fact that the man was an admitted atheist and in addition to saying something stupid you compounded it by looking ridiculous.
Since you're an unabashed water carrier for Barry, I expect no less.