My partner coming out?

Remember how happy you were in your relationship before his family became involved? He was doing you a favor by protecting you (and himself) from them. You were obviously lucky to have such an accepting family, but not everyone is. And if you don't have the patience to deal with this issue, perhaps you aren't meant to be together and need to solely date others who are accepted by the family based upon their sexuality. It just sounds shallow to do so, and I think you that is true, but are just venting your frustration

Surely this issue of not being out and having a less than supportive family came up during the first few dates...and you decided to continue the relationship for two years anyway. In most cases parents come around eventually when they find out an adult child is gay. But sometimes it never happens. So you have to decide what you want. You can have this person without familial support from that side or you can leave the relationship and find someone from a more functional family. You can't change these people, although they may change on their own. You likewise can't fault your partner unless deceit has been involved. If you knew going into this that the family situation would be an uphill battle you don't really get to complain about that now.

i would just leave them alone if they dont want to see you

What gives you the right to expect his parents to be accepting of your lifestyle choices?

Not everyone likes what you are.

I'm with his parents.