I'm with you, but if you could relay LN PSBT pre-images over fax, VOIP, or carrier pigeon, does that mean that we can't have fax machines, internet or birds? Maybe I'm being a bit simplistic but the same can be said for many things. Knife crime is a problem. Every kitchen has a knife and they are extermely useful for cutting meat, vegetables and bread. What are you going to do about it? Either you live in an autharitarian backwater where governments start demanding you have a license for a pencil and a sheet of paper. Or society deals with crime how it has generally in the civilized world. You have police forces, inverstigations and the presumption of innocence until proven guilty. Otherwise, what are we paying taxes for?

People do good and bad with Tether I guess (after they convert it into currency.)