It’s not just making a hasty generalization. Everywhere capitalism has occurred it has evolved into imperialism or the victim of imperialism. Nowhere exists where your ideal capitalism exists. The whole world is either imperialist or industrial capitalist or socialist. How do you expect industrial society to exist with individuals owning their means of production? The only way is collective ownership. The last non-Marxist country that I can think of where everyone owned their own means of production was Libya in Gaddafi’s time, but of course they were invaded by the imperialists and now there are open air slave markets there. It’s funny how every state that meets your definition of capitalism has called themselves socialist in some form or another. Even in early capitalism it wasn’t good. There was slavery and colonialism. Was it only pure in the 1600s? Even then there was colonialism and highly profitable “exploration” and extraction ventures.