My grandparents showed up again and I am totally confused on what to do to reinforce this

they have a r*pist mentality, and honestly, the helplessness I feel comes so close that being in this situation reminds me of how distressed I felt during my SA. It honestly led me to tears right now. I hate how trauma from that literally had to be reignited just because my grandparents can't respect boundaries.

Oddly enough, they tried to use one of my uncles as a proxy a few days ago. They did this to ask me if I want Christmas lunch with them. I told them "No," but they still came. This is undoubtedly a r*pist mentality.