They don’t actually, the only British ‘social network’ is OnlyFans and it’s allowed in China.
As for the rest, what is the relevance?
US money influences our politics through shadowy think tanks and pushes it to the right. US-owned water utilities take on loans, use them to pay dividends and drive themselves into bankruptcy.
Being a US ally doesn’t buy us better treatment from US billionaires, they are still predatory vultures.