I said that English identity is racialised, not that it's racialist, and certainly not that it's actually racist. There are indeed more open, porous interpretations of English identity: if you'll look back a page, you'll find me making just that claim in response to your lamenting London's dearth of pureblood Saxons. And as you say, the identification as "English" is often functionally equivalent to the identification as "British", so if Britishness can be civic and porous, there's no particular reason that Englishness can't be. What I'm saying is that, right now, the explicit claim to Englishness as opposed to and distinct from Britishness is shot through with racial associations, and even you accept that when you complain that declarations of English patriotism are regarded as suggestive of racist attitudes.
As Flying Pig said, I'm sympathetic and even vaguely supportive of attempts to constrcuct a non-racialised English identity. I don't see this whole "Britain" thing holding out for more than another decade or two, so you're going to have to cross this bridge sooner or later.
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