I live in an echo chamber, almost all my friends and colleagues are Labour supporters, and I only actually know one person who definitely votes Tory.
She's still voting Tory because she's politically and economically illiterate, and has no grasp of how stuff works. She bloody loved the flatulent fabricator Johnson because she thought he was "hilarious". She was an NHS nurse for many years and is now in local government, managing sheltered housing schemes, but because she's got a few lazy colleagues she's still convinced that our public services are adequately funded and any problems are down to bad management and/or lazy staff. Oh, and also because so many people have more children than they can afford because they get more benefits (I've pointed out that since 2017, they don't get any more money after the second child, but she just shrugs).
I frequently question why I still regard her as a friend, but it's really because she's very kind to people she actually knows, very funny and generally good company. But my god, she really does frustrate me to the point where I feel like shaking her.
One SIL and her husband vote Tory, but they've fucked off to live in Australia to avoid paying tax on the millions they make on the houses they build/do up, so might not vote in the GE. The cheeky fuckers thought they should get tax relief on the money they spent on school fees, because they were saving the state money! The other SIL might vote Tory, and I suspect her DH does, but as they live in one of the safest seats in the country, it makes little difference. I don't actually know how they vote, and they don't get involved in political conversations.