There's an ambiguity in the word respect. How I'd put it is that while it may be true that someone has to earn respect in order for us to feel respect, in all circumstances we have a duty to act with respect towards them.

Feeling respect towards someone is not the same thing as treating them, including addressing them with respect.

The term "reasonable views" is unfortunate here. Whether views are reasonable or not is a separate matter. We may not respect views which. Are unreasonable, but we houkd still treat the person expressing them with respect, even if we do not feel respect towards them.