While I don't know what the original user said besides your quote, working to rehabilitate and convince people despite the most awful is a laudable goal.

How is someone who is against the thesis of something the very thing they are against? The only thing I can think of is the Nietzsche quote about the abyss. It seems like a form of dialectics? Like there's an understanding of a contradiction of sorts and then some essential aspect is filtered out and that's applied to everything in the situation. Then some small exclusion is made for whatever the specific characteristics are that line up with the conditions the person has is proposed (in this case their friend's circumstances). I think what I dislike is that there might not be further investigation and attempts to broaden discussion are met with some hostility.

It's not as though I want to make things unpleasant for others, but it seems like it's frequently taken that way :/