It wasn't so long ago that "trigger warning" wasn't even a common phrase. I remember thinking about this in college, though, because I was in a relationship with someone who would get angry at people for expressing input that was too closely related to recent private trauma she had been through. I didn't really understand it because I had always trained myself to judge the producer of input by the intent of the produ…
I've been in recovery from realizing and recognizing the effects of my trauma for almost 4 years now. You talking about rape does not bring me back into the mental state it once did. But I don't know how I got here, besides through time (and sheer determination to be the best I can be, and not let my past haunt me). But that said, if you reminded me of my abuser, I don't think I could control my reaction so much. And hyper anxiety / reactive shutdown is not something that is easy to remove oneself from.
I think your attitude is very intelligent, but I think you need to add a little more empathetic wiggle room for things you may not understand entirely.