US President Donald Trump has hinted at an existential crisis for Europe, taking aim at its hesitation to confront his tariff threats. “Because of tariffs … if they build their plant here, they don’t have to pay any tariffs,” Mr Trump said. “So, when I put on a 100 per cent tariff, look what’s happening in Europe … they are being eaten alive. “Europe better get their act together fast or you’re not going to have Europe.”