You really don't know what you'd think of someone who called the Nazis or the KKK "freedom fighters"?
I would think they're very confused to apply that to the Nazis.
I can see how one could apply that to the KKK, if I attempt to put myself in the shoes of white "racialists" threatened by the end of slavery in the Reconstruction era, less so nowadays.
In both cases I might suspect there was a high likelihood the person was racist.
I don't think that carries to people saying the same about Hamas though, since I know plenty of non-racists who have the potential of saying the same thing. Like, there's plenty of "freedom fighters" out there that have committed highly odious acts, so I think some direct appreciation of such acts needs to be in evidence before I can conclude that the person loves terror attacks or hates jews. Besides, on such a polarizing issue, there's enough misinformation on both sides to lead the confused to places that are contradictory (ie, calling Hamas "freedom fighters" while NOT hating jews and NOT loving terror attacks).
All that being said, to indulge these questions is to indulge a rather silly methodology: I do not think that answering questions with the object of discussion being replaced by "Nazi" or "KKK" is all that worthwhile an approach, and rather moreso the mark of the intellectually lazy.
Surely there's other ways to get your point across. Might be a fun exercise.
"How can I respond to this post without mentioning the KKK or Nazis?"
Maybe a good question to ask yourself before every post, see how well you do without your favourite crutch!