Exactly, he, like many libertarians and almost all liberals, really think that criminal violations are not immoral. It is a kind of spiritual blindness, very sad to see and extremely irritating to try to intellectually argue against.
You have it exactly backwards.
A moral violation should not be criminal.
We've presumably progressed as a society beyond the dunking chair and the stocks as punishment for gossips, trollops and busybodies.
The government needs to stay out of our bedroom and out of out wallet.
You won't find many liberals agreeing with that, and all too few conservatives, unfortunately.
Sorry, but "the law" and morality are often diametrically opposed. In many cases it takes decades for the law to catch up with morality which also changes with time in every society.
How long ago was the SCOTUS Dread Scott decision the law of the land? Was that moral? For example, not so long ago, it was a crime for a Black man or woman to marry a White woman or man. Was violating that law "immoral?" How about the the people currently being held in jail in NYC for handgun law violations? I believe one is a decorated US Marine. In these cases, they actually attempted to comply with what they believed to be the law, and they were immediately arrested. Are their actions, carrying concealed weapons, immoral?
These are just off the top of my head with no thought; I'm sure I can come up with many more.
Mark