Dude, don't listen to these guys who are telling you to punch your father or to confront him or cut him out of your life. It is something that you may regret later in life.
I had the same issue with BOTH of my parents when I first came out. At first, I reacted exactly like you did. I let them win and it reinforced with them that that behavior could get the result that they wanted.
The way that I counter-acted them was to confront it at the time in a non-threatening way. This is not a case where you fight fire with fire. I would say that I thought that was rude and walk out of the room without discussion and do what I wanted to do. I was very consistent with this. I did not let them get a rise out of me or deter me from doing what I wanted. I think that parents think that they can intimidate the gay out of you sometimes...
The consistency of the action took all of the effect out of them making remarks like that. The second phase of that was to have a conversation about it at a time when we were either alone or in a place where they felt that it was safe to be vulnerable and honest. I told them how their statements affected me, were out of line and how I wouldn't stand for them. I told them that they were pushing me away. Again, this was a process that took time and consistency. I also stopped calling and visiting as often just to drive the point home.
Now, after a few years of hard work, my parents are respectful and my dad is actually supportive. Don't get me wrong, it's not like we talk about who I'm dating or anything like that, but I know that that will come with time.
The bottom line is that most parents love their gay kids. (Clearly there are some that do not, but this doesn't sound like the case in your family.) Their reaction is a selfish one based on "losing" their hopes and dreams for you. They just need to understand that you will still be a good person. That being gay doesn't change that. What you have to do is continue to be successful at what you do and patiently work on your parents to get them to come around.
You can change friends like underwear, but these are the only parents that you will ever have. Don't make a rash decision now that you will come to regret down the road.