When I was at university in London's East End at the beginning of the '70s, there wasn't such a plethora of groups. 'SocSoc' was a bunch of noisy socialists, there were anti-Barclays Bank protesters (due to Barclays DCO having South African investments in the apartheid era), Peter Hain and the Anti-Apartheid Movement, NUS protests etc. Skinheads threatening 'bovver' were soon reminded that, even though they were behind bars, The Twins didn't approve of casual crime or street violence on 'their manor'.....
Fortunately the University Air Squadron held much greater interest - and as APOs we were well paid after 1970!