So, why should the Greens have been bound by a pact made between UKIP and the Tories?
Also, by the looks of things they weren't campaigning for the by-election as such, but running an anti-war stall, which I'd argue is in fact very appropriate (though using the party name to do so when there is a by-election soon is admittedly a bit opportunistic).
And as for the quote, bull****. The reason we have rights is because people struggled for and won them here.