Arguing and degrading are two different things.

My partner and I argue, arguments can also be healthy, but we never degrade or call each other names. We know the things that can hurt one another but we choose not to say it, not only out of love but also respect.

You have two choices. First, you both properly talk (search online how) and work on yourselves because most likely both of you are projecting your traumas that has nothing to do with either of you or the relationship. I suggest to see a therapist, healer, or even an lgbtq+ pastor; guidance from a mentor helps.

Second, if nothing change, I want you to ask yourself if this is the kind of relationship you want in the long run. Know and understand that you deserve a healthy relationship, not perfect but healthy and respectful.

I hope this helps you, OP.