Obviously what's being described is awful, but as an aside I'm not a fan of OP insinuating that the people who don't understand consent are autistic.
It's incredibly simplistic to assume that "nerd = autistic", and it harms a minority to say autistic people don't understand consent.
What OP is describing is explained perfectly well by (nerdy) neurotypical people engaging in bog-standard rape culture, let's not drag a minority here for the actions of some male rapists
Your inference is not their insinuation
I would say a more common autistic situation would be to totally miss cues that someone likes you. It's the sense of entitlement that differentiates these people, not whether they're neuro typical or not.