Most countries in the Euro zone aren't on their third government since the summer, and didn't have one of those governments collapse in the fallout of introducing a tax cut for the rich, funded entirely through borrowing, which made their bond yields shoot through the roof.
Most countries in the world didn't stick up a middle finger to their largest trading partner, and then failed to replace it, in a timely fashion, with alternative trade deals.
Most countries in Europe aren't also selling gas's to other countries, knowing full well they will have to buy it back at a higher price in the winter. The UK has very little gas storage compared to other EU countries.
Political turnover doesn’t really substantiate the idea that Britain is entering a recession because of bad economic choices. Again, the rest of the eurozone is in the same boat. To me, it only substantiates political discontent and a system of government where that kind of turnover is possible. I see little evidence that Britain’s current state of affairs is because of Brexit.