There's no level of autism that can get you to think that talking about molesting baby Hitler would be a good idea, especially with a girl that anon is presumably trying to impress. There's a reason that anon is on 4chan, and it's not just autism.

He isn't inept. He does it on purpose and uses autism as a shield.

He's the type of person who revels in making other people uncomfortable (especially women) because he's very immature and going through his "poke the bear" phase.

We all go through that phase to some extent, where we push back against the world to see how far we can go before the world slaps back and teaches us how to behave. Some kids to grafitti on walls, others shoplift once or twice, some spew edgy opinions, others refuses to listen to authority figures etc etc. But at some point most people grow out of it and settle into the world and become more mature.

Some people, however, feel the need to go further than others and poke the bear extra hard. Sometimes they wake up after a slap, other times they don't, because they never mature enough to settle in to society. They keep being "rebels" to provoke a reaction because it gives them a thrill. Makes them feel somehow important or different and thus better than the rest of us.

It's a very sad way to live and some people get stuck living like that and never grow out of it. Hopefully, this Anon will mature eventually and forever cringe when he looks back at this period of his life. But his autism has nothing to do with this behavior he is displaying. It's just a way for him to not hold himself accountable for his bad behavior, as people like him are apt to do.