I agree that your parents aren't being helpful. They seem to be having a hard time letting you grow up. You could try saying you don't want to hear anything negative about your wife when they bring something up. Just keep repeating it. Be polite. If they insist, say you're sorry, but you have to hang up because you won't listen to anything negative about her.

Then don't go to them for relationship advice.

They might be immature, but you don't have to be. Don't let yourself be blackmailed by your stuff. If they try to manipulate you by saying you have to get your stuff out, say that makes you sad, but you'll respect their wishes.

This is how it's done. At some point, we have to separate from our parents. It's a process. Just try to treat them with respect, but don't forget to treat yourself with respect. If things start to get heated, go out and take a walk. Best wishes and thanks for being a hero.