Politics changes all the time - compare and contrast Labour under Blair, Corbyn, Starmer. Tories under any of their leaders over 14 years.
Selfish people have propensity to vote for whoever makes them better off, because they love a tax bribe whilst simultaneously moaning about the shocking state of public services.... it's a real headscratcher for them. They don't give a toss about their neighbour or people elsewhere, because Thatcher once said there's no such thing as society... it's everyone for themselves.
Whilst some maybe worse off - who gives a s**t - it's their own fault, so fuckem, there are plenty who are either not or "about the same". That`s how life tends to be if you have zero empathy or conscience and have been swallowing the Tory koolaid for the last 50 years.