

These people are protesting about the genocide, but also protesting against the proscribing of Palestine Action, and shining a spotlight on the draconian laws which means that the government can proscribe any organisation they don’t like, and arrest everyone who shows vague support for them.
They know they will get arrested doing this, but there’s no legal way of protesting the proscribing.
Yeah, I guess you could protest the general concept without mentioning Palestine Action, but as soon as it’s about Palestine Action, it would become illegal.