Although I cannot think of two more different cultures, the old IRA was always sympatico to Palestine because they identified with the plight of being “occupied”. I guess some from that era have not lost that feeling of affinity. Old habits are hard to die.
No; it’s more of an anti-British thing in reality, what with the Balfour Declaration et al.
The truth is, of course, that the so-called “Palestinians” are the occupiers.