Partners Family is Always Fighting. Can it work if I don't want to visit her family all the time?

She assured me that they would never fight Infront of guests.
Everytime I've visited, there was constant fighting from start to finish. Frankly I don't want to visit them anymore, it's uncomfortable and awkward.
I told my girlfriend this, but she keeps inviting me, promising me that they won't fight, but they always do. The last time I visited was really bad, and I'm way too stressed to deal with that right now.
How do I get through to her?
Can it work if I don't want to visit her family all the time?
Partners Family is Always Fighting. Can it work if I don't want to visit her family all the time?
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