With the US threatening to support ‘patriotic’ parties here, we need better defences, starting with tough new rules about political donations

The new threat is so dizzyingly bizarre that Europe, and especially Britain, is slow to believe it. The US declares itself our enemy. Europe emerges as its main adversary in the US national security strategy. Russia is its friend, not us. Everything that looked solid since the second world war is turned upside down; the land of the free becomes the destroyer of democratic values. Appeasement fails.

He may ramble, but Donald Trump speaks plainly. He means what he says, and he hates everything European. Except its emerging “patriotic” parties, which he wants to support. His strategy warns of “civilizational erasure”, claiming Europe will soon “become majority non-European” and parroting the racist conspiracy known as the great replacement theory. Describing Europeans as “weak”, “decaying” and “destroying their countries”, with “real stupid” leaders, Trump responded to the question of whether they would still be allies, in a Politico interview, with a hint of threat: “It depends.”

Polly Toynbee is a Guardian columnist