Actually, having asked around about the Workers' Struggle group (the group I referenced in my previous post), they're far worse than the standard USFI party. The height of their activism was petty vandalism against the ruling party, but they seem to have abandoned even that in favour of extreme economism. Browsing through their newspaper, one gets the impression that politics doesn't exist to these people - only trade unions.
I thought about starting something, but I know, at most, three people who might be persuaded to join... I don't think that's enough.