There is also a difference between just holding views and deciding to launch them into the public domain. Folau can think what he likes; it is only when he posts his private views in the social media that they have a wider and social impact - one that is not accidental, but intended - and they become a legitimate target for criticism and comment.
It is not unusual to find that views like these will attract censure in a number of ways. The law, for example, provides that the public expression of certain kinds of views can attract legal consequences - either because they are seen to be harmful to the cohesion of our society, or because they treat unfairly and denigrate particular groups or individuals, so that their standing in the eyes of others will suffer or they will themselves suffer a loss of self-esteem.
At this point, Folau's case introduces a further complication. No one doubts that Folau's online statements denigrated and traduced certain groups of people, and were intended to do so. But, his supporters argue, his statements reflect his religious beliefs.
To preserve his own freedom of religious belief, they say, he must be free to broadcast, even to preach and seek support for the message that he believes he has received from his god, whatever its detrimental effect on others.
It is just too bad, they say, if those who do not share his religious beliefs feel offended or threatened by, or are harmed by, what he says. His freedom to proselytise on behalf of his religion should not be limited.
But a blanket "free pass" for offensive and harmful views on the ground that they emanate from sincerely held religious beliefs could be exploited by almost anyone. A claim that a certain view is an expression of a particular religious belief rests, in any case, on nothing more than the claim of the person making it that his religion requires it of him. Whatever its provenance, it is still a statement made by that individual - and one for which personal responsibility must be accepted.
It should still be judged by the same standards as are applied by our society to all statements and claims; investing a contentious view with some supposed divine authority on the say-so of the person making it should not render it immune to the judgment that would ordinarily be applied.
Israel Folau was literally careless about the harm and distress he caused to many (sometimes vulnerable) people - the very antithesis, one might have thought, of a Christian attitude - and is apparently ready to pay the price for expounding his beliefs. We should take him at his word.
Bryan Gould is an ex-British MP and Waikato University vice-chancellor