People did not like your opinion. So what? Isn't that the point of having one? It's not like you're going to wake up the next day with rating-transmitted aids. It doesn't mean anything. Feel free to 'smite' me, to 'no just no' me, or whatever you feel like. I'll go about my day just the same. And that's the exact same thing you should do.
This is coming from someone who doesn't hand out negative ratings (and in case you checked my profile; the cat like typing one has it's context right
here) precisely because they don't mean anything to me. If you can't handle a little negative feedback you should not have an opinion ever. You got some down-votes for what you said and there was this one guy being a douche, but what consequence did it have? Do you feel you're worth less as person now? Do you doubt your ability to reason? Did you wake up with rating-transmitted aids? None of those? Well fantastic. What are we doing here?
Seriously though. My advice, and I say this with the best of intentions, is to let it go. Don't play the victim-game, that just will hurt any position you'll ever take in any debate in the future far more than one controversial opinion and a few down-votes ever will.