“Never believe that anti-Semites are completely unaware of the absurdity of their replies. They know that their remarks are frivolous, open to challenge. But they are amusing themselves, for it is their adversary who is obliged to use words responsibly, since he believes in words. The anti-Semites have the right to play. They even like to play with discourse for, by giving ridiculous reasons, they discredit the seriousness of their interlocutors. They delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert. If you press them too closely, they will abruptly fall silent, loftily indicating by some phrase that the time for argument is past.”
I think the kind of rationalizing you're doing is not much different from the rationalizing people on the other side of the political spectrum do. I had similar discussions with people from the other side and they argued similarly to you. I think your quote is broadly applicable to both sides as well.
Also, personal attacks, which you crossed into, are not allowed on HN and will get you banned here. Please don't do that again.
I wish we could all accept our differences more civically, but I don't know how we can make that happen.
[0] I fully expect antifa to get stronger after this.