> Cambridge Analytica (which was British, not American),

Saying that the manipulation was done by the UK because Cambridge Analytica happens to be Brittish completely misconstrues what happened.

> Cambridge Analytica was working for United States Senator Ted Cruz using data harvested from millions of people's Facebook accounts without their consent

> Facebook later confirmed that it actually had data on potentially over 87 million users, with 70.6 million of those people from the United States.

https://en.wikipedia.org/wiki/Facebook%E2%80%93Cambridge_Ana...

It was very much a story of manipulation in the US being done by Americans, even if there were Brittish people involved too.

Your own source contradicts that claim?