The general problem is that web site X doesn't know if user Y lives in state Z. And most of the realistic ways to allow them to know this are huge PII disasters waiting to happen. This has nothing to do with morality. If states wanted to ban HN, it would be just as ridiculous. Using IP address is about as pointless as using your mobile phone's area code.

No, the problem is unchecked moral panicking. IP geoblocking is mitigation.

All laws force morality on people.