I'm an Anglophile. This flag is posted to show solidarity with the concerned Brits who fly their flag to protest the government's spineless response to illegal immigration and immigrant rape gangs.
The protestors' refusal to tolerate further government inaction is precisely on target. Stand up, take your country back.
Reform, at least, has a plan to deport those in the U.K. without permission, see this CAPXarticle for details.