Ultimately, who you marry has to be YOUR decision. No one lives in your marriage except for you.
What I would do is sit down with your parents and ask them what they object to. Is it his religious level? Are there things they see objectively that you don’t?
I’ve had many friends go through this – mainly because what their parents wanted for their kids was not what their child actually wanted (mainly hashkafically, but sometimes education or otherthings). If you choose to go ahead with a match that your parents don’t approve of, you should be aware of a potential rift that could come between you. Sometimes, its just a temporary chill. Sometimes, these things last longer.
My advice is OPEN DIALOGUE with your parents and then make your own decision. You can consult other people you trust, but its important for YOU to make the right decision for yourself.