While that may be true, it’s less true for things like cobalt strike. I’m not saying that banning tooling would be a good thing, but it’s a bad argument to compare Nmap to remote access tools.

I don't disagree, but GP is asking about all offensive tools, not just Cobalt strike. IMHO a platform like GitHub should not be picking and choosing which projects are offensive enough to remove. Yes, there are some tools that are pretty clearly more offensive than others, but creating a policy would not be clear-cut

Cobalt strike is just an automated script kiddie really. It's a way for red teamers to catch low hanging fruit. And because of that, there's not so much low hanging fruit anyway.