No, I don’t. My identity means a lot to me. I have traced my mother’s line back to 1380. It fizzles out there (in Kent), but given my DNA results, I’m pretty sure it goes right back to some Danish or Saxon settler in the 500s. On my dad’s side, I have got back to the 1500s, though again, I’m sure it goes back further. I also have Scottish and Irish ancestors, so consider myself both English and British, (British in the broadest sense, i.e from the British isles). Human beings need roots. We need a sense of identity and belonging.
People who diss patriotism (and this isn’t a dig at you OP) are usually tedious poseurs. They think it makes them urbane and sophisticated to hate their own country. It doesn’t. It just shows how small-minded and easily led they are. They are just as tedious and small-minded as a flag-waving nationalist and xenophobe. Intelligent people are usually mildly patriotic, with a quiet affection for the best things about their country, but interested in other cultures and hostile to nationalism and xenophobia.
My patriotism is bound up mainly with literature. To me, England means Chaucer, Shakespeare, Donne, Spenser, Milton, Blake, Wordsworth, Shelley, Byron, Keats, Dickens, the Brontes, DH Lawrence, Woolf, Larkin, etc, etc. I also love the way our literature is woven into the landscape (the Brontes mean the Yorkshire moors, Chaucer means Kent in the Spring, Jane Austen means Bath, Dickens means London, Wordsworth means the Lake District, and so on). But it is also bound up with the tragedy and sacrifice of the two wars. Both my grandfathers fought in WW2, and I have the letters my great grandfather wrote home from the trenches in WW1. As a child in the 1980s, I watched WW1 veterans parading on Remembrance Sunday. And I remember my grandmother crying during the minute silence. All of this is a part of me. I don’t care what a sneering Guardian-reader thinks. I’m not looking for their permission to be patriotic.
I would just add that any immigrant who wants to claim that history and culture for themselves is welcome to do so. If you are born here, the literature and history and landscape is a part of you. Identity can be complex and multi-layered. It’s rarely black and white. You can be both English AND British AND and European AND Pakistani (or Japanese or Australian, or whatever).