Because it's not that black or white. The Nazis and kkk murder innocent people. They don't only express themselves, they kill. Its not so simple. Yeah sure, if they don't act violent trying to fulfill their fantasy- they can express their opinion. But that's not really what's going on. Therefore you can't really compare the two. It's a naive thing to do, to compare them. Because they are completely different. The Gaza protests are not violent. Hamaz is violent. America created Israel, Israel murders Palestinians. But the protests are peacefull. It's a very dicy issue, but it's not the same. The question of freedom of speech is there. Other than that, it's very different.
"/s is an internet slang abbreviation that is commonly used on online communities and message boards to denote sarcasm. While /s can also be used for physicists and mathematicians to mean “per second,” and is also used by web designers using HTML to strike through a portion of text, you will most commonly see /s to denote some online comment as sarcasm."
Most of them didn't