socialism is well and alive. Companies' unions are quite strong. Rich business owners collude to keep wages low and prices high while gaslighting labourers using inflation and bigotry. There's comraderie among scoundrels, con-artists and slave owners. They are called rich people.
(I'm making a joke about how the first names of leaders aren't as familiar outside of the nation it was targeted at, either that or the USA is saying "hi" to the UK, take your pick ⛏️!:-D)
Both Joe and Rishi (and Xi, and Vladimir, and maybe even Ursula and Justin) are known well enough world wide to call them by their first name in a meme.
But if you do want to talk about the U.S. and socialism, you could point out that the U.S. government's subsidizing of the military-industrial complex has made it a supreme military power, so you'd think American politicians would argue that government subsidies are a successful way to do things. Weirdly though...
Brits are just as bad at it. But it's cute when they do it because at least the rest of the world does know most US-centric topics so it's mildly annoying but doesn't preclude conversation. When brits do it no one knows wtf they're talking about.