I didn't mean to make a strong Antifa link, I just thought it's something non-Brits would understand as a point of comparison in terms of general activities rather than specific tactics or aggressiveness. e.g. SWP was heavily involved in the Ant-Nazi League in the 70s back when the National Front was more of a thing in the UK.

The SWP types I knew back in the 80s probably are your boring old lefty uncle these days. That's how out of date I am, although there were still excited young SWP activists pushing leaflets and selling the paper on Deptford High Street in the early 2000s. That's well before the rape crisis though.