Soldato
Supporting designated terrorist organisations is, in itself, illegal in the UK. But, I tend to agree with you, actual hate speech should be outlawed but I'm uncomfortable with free speech restrictions on something as broadly drawn as "supporting" an organisation no matter how repellent their actions.
Kristallnacht happened because the authorities sat back and let it happen. There is thankfully no risk of that happening in the UK and while the anti-Semitic behaviour reported above is disgusting and no doubt scary to the Jewish population, they still represent a minority in the UK rather than anything that has tainted the mainstream.
It was teh authorities which made it happen - the SA and SS!