Also important to note that the TRPF is largely about new machinery. Competition involves increasing technology, which raises the mass of commodities and usually the mass of profits, but lowers the rate of profit. This is only fought by further raising the mass of profits via expansion, which is why we get imperialism as capitalism grows.
Yes, I think it does. Not saying people consciously plan it like that, it’s just the one option left once you discard everything that capital might not like. For capitalists, war promise a stabilizing effect in the face of deep crisis. But leftists in the imperial core can turn the effects of war against the ruling class by waging struggles over who should pay for the blowback. Strikes against inflation, social cuts and against war funding in general. The war will end, when it no longer seems to promise profit opportunities.
war never changes just as that class