It’s possible, yes, for someone to change their mind. But this process comes with sympathy for all the people who haven’t yet had the realization, which doesn’t seem to be in evidence.
Cognitive dissonance is, again, exactly my point. If you sat him down and asked him to describe in detail how some guy setting up a server rack is similar to a rapist, I’m pretty confident he’d admit the metaphor was overheated. But he didn’t sit himself down to ask.