I'm going to say that I love my family more than my girlfriend
Why do you want everyone to know that you love your family more?
I think I will get a lot of responses from people if I said that.
While it's great to have family first, your girlfriend should be a part of that family too. Not putting them in the same category tells her that she is still an outsider, and can be very hurtful to her or could be detrimental to the relationship. You need to just keep these feelings to yourself until you are ready to treat your girlfriend the same way.
It's just a joke bro, everyone likes the joke, but bitch drama seems to be high these days.
Well, it seems like I fell for the joke, because I thought that you were being serious.  I hope that you really do feel the same love for your girlfriend as you feel for your family, but in the meantime, it is wrong to use words like "bitch" to refer to her, even indirectly.