"this has nothing to do with like or dislike of anyone"
You are correct.  The point was not about like or dislike.

"I know what is right and good and just, period."
But this is incorrect.  The point was not about right and good and just.  Every functional person believes that they know the same thing.  It leads to confirmation bias.

The point was about if the quote was valid, ie. if you make a statement and fail to provide evidence others can validly, without evidence as well, dismiss what you stated?