Agree, the labor aristocracy in the west has their material interested intertwined with imperialism and stands to lose from revolution in the periphery. Now just add to the picture: if all the countries, including the west, had communist revolutions, including redistribution, average people in some imperial core countries like the US and Germany would still initially be better of. People in Canada, France and Spain would lose wealth. They would only get freedom, security, peace, fullfilment from end of alienation and survival of the planetary ecosystem, but this is all less immediate and less material.

Source

This is from 2019. As global inequality increases, more and more workers might stand to win wealth from revolution.

Disclaimer: this simple calculation doesn't take into account, how supply chains would shift after revolutions. It basically just looks at the immediate effect of a hypothetical redistribution of wealth. The real impact of global revolutions on workers in the imperial core, as well as the periphery would depend on structures of international solidarity forming. Still, a quantitative perspective like this can be helpful.