The most powerful consequences of any law are the unintended ones. What have been the unintended consequences of similar state laws? Have we seen any denial of services, mass or otherwise, in the states that have similar laws? We do know that we have the government forcing people out of business in places like Oregon for non-compliance, so we have those examples to work with on the one extreme. Do we have any examples from the other extreme, or is it still a hypothetical game of libertarian vs authoritarian theory?
If he is correct, then we have to merely look at other states that have instituted a similar law to see what the consequences are - rather than talk about theoretical outcomes or analogies.
Well if he is correct, then there have been some of these cases where people are running business and claiming they should be exempt from anti-discrimination laws due to religious issues, in these states with these religious protection laws have passed, and the people have still failed in their claim. So basically it looks like this entire issue is a non-issue.