British 'democracy' is not democracy.
At the next election, another minority will put in a Labour government, probably with a large majority. If the majority is much above 50, Starmer will claim a huge mandate to do what he likes, despite the fact that most people voted against it.
At a typical GE, the decision is made by a relatively small number of floating voters in marginal seats. And it doesn't matter whether the winner of a constituency wins by 1 vote or 40,000, the MP will always claim a personal mandate. Even when more people voted against him/her than for.
Most of us might as well be living in the UAE for all the practical impact we have on politics, or on policies.