Renormalization is just a stop-gap procedure. There must be some fundamental change in our ideas, probably a change just as fundamental as the passage from Bohr's orbit theory to quantum mechanics. When you get a number turning out to be infinite which ought to be finite, you should admit that there is something wrong with your equations, and not hope that you can get a good theory just by doctoring up that number.
The British Labour movement is today, and for many years has been, working in a narrow circle of strikes that are looked upon, not as an expedient, and not as a means of propaganda, but as an ultimate aim.