"One of life's pleasing peculiarities is that the committed communist views the theoretical principles of his politics with the same fervour that the religious zealot worships his God

That is pretty much a description of every kind of zealot, including those Brexiteers who are unconcerned if the UK splits up, or if we 'may have short term' disadvantages in the hope of something better long term - while offering no evidence that hope will be fulfilled.

I wouldn't particularly describe it as pleasing, though.