First of all, starting your “argument” with insults is about the least effective form of getting your point across in existence. It tends to shut the listener down and put them on the defensive, so if your intent is to do anything other than vomit your emotional reaction onto the target of your feelings, you’re not going to get very far.
As to the rest of your comment? I could point you to a number of vegans who would consider you to be “a shitty person” and “worthless as fuck” for supporting the eating of meat and other animal products, especially since the commercial agricultural system does treat livestock pretty poorly (hence why I personally try to buy free range meat whenever I can afford it and have been cutting down on my meat consumption). Personally, I don’t feel any of us are shitty OR worthless, regardless of what we eat or otherwise consume. So who’s right? You? Me? Or the hardcore vegans who think you and I both suck?
I’m also guessing you’ve swallowed animal rights groups’ propaganda about how furs are obtained. For that, I’m going to direct you to this post by howtoskinatiger, who explains concisely why a lot of those “skinned alive” videos and the like don’t reflect reality, and Wolf Force’s excellent compilation of links on the subject.