- The Prohibition was implemented and then ended, i.e. the state gave up its power to ban alcohol.

- The Bill of Rights itself post-dates the founding of the USA. Those amendments were limiting the power of the state!

- Income tax rates were once much higher than they are today. Of course you could argue that this isn't a reduction of its power given that once upon a time there was no income tax. But it has nonetheless fallen from its once great heights.

- The federal government gave up its power to regulate abortion quite recently.

- In the 60s (or 70s I forget) the US government deregulated the airline industry and has never gone back.

- The War Powers veto. One could argue that it's not been effective because POTUSes have ignored it, but in theory Congress took away the ability for Presidents to declare war.

Labour is fully committed to mass immigration and "diversity", refuses to reduce welfare by even a penny despite imminent financial crisis, has implemented big tax rises, has soaked the rich so much they're all leaving, and this article is about it enforcing heavy handed regulation of information distribution. All that sounds very left wing to me, judged by the modern goals the left have.

The Conservatives don't want to reduce spending on benefits. They always defended the triple lock that makes their pensioner base so happy, of course. They are merely slightly more willing to admit that huge cuts are inevitable than Labour is. Labour also tried a tiny reduction in benefits - there's not much difference between them really - but their MPs are in total denial of the scale of the problem and blocked it.

UK benefits are going to evaporate, it doesn't matter who is in power. Tweaking eligibility criteria is rearranging deckchairs on the Titanic at this point. It's become a financial inevitability post-COVID, just look at the charts. The austerity that's coming will show the 2010s era as the weak sauce it truly was.