Can't see anything either current  past or in context on that linked thread to substantiate that claim

But I did note mention of areas of North London, in current reference to 'immigration'. Weren't similar claims made in the sixties and seventies against the influx of both Greek and Turkish Cypriots in some of those same areas following violence and acts of terror in Cyprus, some of that being due to the Greek Cypriot civil war with opposing factions,some Greek Cypriots supporting democratically elected Makarios, and other Greek Cypriots wanting enosis and supporting right wing Grivas/ EOKA B, backed by the Greek military junta,in a bid to overthrow Makarios?

Wasn't EOKA and later EOKA B under Grivas considered terrorist organisations and didn't the British have a substantial reward placed on Grivas, including safe passage to anyone offering information leading to his arrest?