France, the UK, every Western nation: if you want your country to still resemble itself, you need leaders cut from the Trump mold. That's the case being made, and the reasoning behind it is that what's happening in London, with migrants and Islamists in what's described as conquer mode, is a recipe for terror and destruction. Western nations shouldn't look like this, the argument goes. And the political left? Accused of surrendering to invaders.