I've read more on it and people's ability to process strong emotions(like people with bpd) but I'm having trouble finding it right now. Here's an article I'll post more if I find it:

https://www.hiredpower.com/blog/why-are-some-people-more-vulnerable-to-ptsd-than-others/

https://www.sciencedirect.com/science/article/pii/S0005791614000226

https://www.frontiersin.org/articles/10.3389/fpsyt.2020.576553/full

Because of the nature of the illness it is very difficult to prove the relationship one way or the other. Because of this I would say the science is not clear on the issue but there are good theories both ways.