Well, put forward the point that immigrant workers should be paid the same as british workers. I mean, thats what's making the employers turn to immigrants: lower wages. They can exploit them more. By organizing for higher wages you show solidarity with immigrants, and stand up for british workers.
As for how to react on the moment of such a walk-out, tough situation. It all shows how racism is engrained in the system: from the standpoint of the individual worker, every immigrant is an another competitor
ο λαός θα πεί την τελευταία λέξη - αυτές οι νύχτες είναι του αλέξη!
Freedom without equality is privilege - Equality without freedom is a barracks
'Engels, my brother from another class,
we haz got to get fucked up on the grog, and then revolt...if the lessons of the Paris Commune has taught as such, the working class cannot lay hold of the ready made bourgeoisie alcohol, they must smash it, and get pissed on cheap methylated spirits.
holler,
marxy.'
- BCBM=AndreasBaader