Exactly. That is why Lenin developed the theory of the weakest link (the weakest, lest developed imperial power was to be the easiest place to start world revolution), Trotsky promoted export of revolution to the most developed countries and after the later failed, Stalin introduced the building of socialism in one country combined with forced industrialization, then after the idea of peaceful coexistence and competition was introduced, and in the end was perestroika.
But in the classical Marxism the revolution has to be prepared by the globalization, world industrialization, elimination of borders and stratification of mankind into owning class and people who own nothing but have only their labor to sell at or below subsistence level.
That is why classical Marxism had to be opposed to the trade unions, tariffs, national solidarity, local communities, religion, traditional morality, redistribution, anti-trust laws etc ...
Globalists, freetraders, freemarketeers, secularists, libertarians, etc work for the vision of Marx to come true. And they may succeed!
"Globalists, freetraders, freemarketeers, secularists, libertarians, etc work for the vision of Marx to come true."
You lost me at libertarians -- seems to me that they're at opposite ends of the spectrum from Marxists. Unless you think that you can get to the far left by heading right.
Attempts to keep economies local, bound by geographical and political restraints are Quixotic at best. Marx clearly saw that capitalism could not be stopped from achieving its maximum development potential. He was right about that. Nostalgic longing for days gone by are not helpful for anyone as well as being silly.