You are free to not eat anything you don't want to eat. Just don't impose your preferences on others by law.
There is something in me that detests people who zealously want to control the lives of others. I don't like the smell or taste of cigarettes, but everytime I see one of the anti-smoking zealots, I wish I was a smoker just to piss them off.
These are societal preferences, not mine alone. That's why they work. That's why we don't have people with pet dogs walking past skinned dogs for sale in this country, people with pet dogs living next door to dogs being beaten to death for their meat, as they do in Asia. There are some things societies make rules about, and one of the things we've decided we don't want to see is our dogs, cats, and most say horses, being eaten. If you like the ideas of those countries, you'll fit in there easier than you will fit in trying to convince us to eat Rover. Or our horses. There's no market for horse or dog meat here, and never will be.