An alternative viewpoint would be that it's entirely the fault of the politicians. Firstly, for not doing any preparation for the consequences of a leave vote prior to the referendum. Secondly for spending over two years prevaricating over implementing the result, leading to a lot of unnecessary uncertainty. Time to stop dithering, grasp the nettle firmly, and get on with it.

I don't think blaming voters for their democratically expressed views is fair. The referendum asked the populace if they wanted to remain or leave the EU. And the politicians got the answer, and it wasn't particularly surprising, even if they weren't personally happy with it. They are supposed to represent the electorate democratically, after all.