We have stated our objection a century ago:
Lenin wrote:A United States of Europe under capitalism is tantamount to an agreement on the partition of colonies. Under capitalism, however, no other basis and no other principle of division are possible except force. A multi-millionaire cannot share the “national income” of a capitalist country with anyone otherwise than “in proportion to the capital invested” (with a bonus thrown in, so that the biggest capital may receive more than its share). Capitalism is private ownership of the means of production, and anarchy in production. To advocate a “just” division of income on such a basis is sheer Proudhonism, stupid philistinism. No division can be effected otherwise than in “proportion to strength”, and strength changes with the course of economic development. Following 1871, the rate of Germany’s accession of strength was three or four times as rapid as that of Britain and France, and of Japan about ten times as rapid as Russia’s. There is and there can be no other way of testing the real might of a capitalist state than by war. War does not contradict the fundamentals of private property—on the contrary, it is a direct and inevitable outcome of those fundamentals. Under capitalism the smooth economic growth of individual enterprises or individual states is impossible. Under capitalism, there are no other means of restoring the periodically disturbed equilibrium than crises in industry and wars in politics.
Of course, temporary agreements are possible between capitalists and between states. In this sense a United States of Europe is possible as an agreement between the European capitalists ... but to what end? Only for the purpose of jointly suppressing socialism in Europe, of jointly protecting colonial booty against Japan and America...
Liberals always have the same solution:
1. Believe that people will think correctly
2. ??
3. Profit (world is made into a utopia by keeping profit motive, of course)
We socialists look at how systems in which people physically interact with each other and their society are constructed. We have a plan and, to quote James Connolly, our demands are moderate: we only want the Earth.
Alis Volat Propriis; Tiocfaidh ár lá; Proletarier Aller Länder, Vereinigt Euch!