Yes, they have also carried out terrorist attacks in the UK. There is a reason why Palestine Action was proscribed. A reality of extreme left-wing "protests" in the UK is that they have media blackouts because they have a tendency to get quite nasty (as an example, there was a group that used to follow the family of a well-known Tory MP when they weren't at home, in the UK these "protests" are generally not reported because it encourages others do the same...more recently, Starmer's wife has been targeted because she is Jewish, Starmer has referred to these "problems" in interviews i believe).

One of the affiliated groups in the pro-Palestine demo is funded by a group which provides the majority of funding to the Labour party...so there is that.

No, to answer the parent's question Palestine Action has not harmed a single person. They use direct action against Zionist military targets, but they've never harmed a single individual.