If you don’t want to get lost in the details, just stand back and breathe in the polluted air. The breaches of international law, the attacks on independent institutions, the loyalty tests, the winning of elections and referendums with promises that could never be kept and were never meant to be kept, the dazzling incompetence, the braggartry, bellicosity and absurdity. I am not pretending there are no differences between Johnson and Trump, just that you will strain your eyes trying to spot them.