(I am writing this on 2018/01/17.The above comment was written on or before 2017/05/21.)

I clearly ignored the fact that migration between countries is not necessarily between imperialist countries and [neo-]colonies, but is often between imperialist countries or between countries that are both oppressed, as well as between countries with other power relationships between their societies. I will not add anything about those situations. Maybe somebody else will.

There is now at least two English translations of the Stuttgart resolution available on the Web:
http://classicalmarxismvsimmigration.blogspot.com/2014_04_01_archive.html
http://weeklyworker.co.uk/worker/1004/border-controls-reactionary-by-nature/

There is a major weakness, however, in this entire discussion: the failure to distinguish between migration into imperialist countries and migration from imperialist countries into colonies and neo-colonies. For example, while we oppose controls on labor migration by imperialist states, it is perfectly reasonable to support the right of the worker and peasant populations of those [neo-]colonies to oppose migration that amounts to settler colonialism, as was the case with the migration of white workers into apartheid South Africa and of European or North American Jewish workers into Palestine, with the exception of those who were fleeing for their lives from the Nazis. (The latter should have been allowed temporary residency until they could be moved on to the Americas.) But whether or not one agrees with me on the specifics, the distinction should not be ignored.

Dear Alec,
Thank you for your kind comments. I am not aware of an English translation of the resolution in question. However, it is almost three decades since I researched “Lenin’s Struggle for a Revolutionary International,” and a translation may have been published since that time. The resolution itself is quite short (like all the congress resolutions) and is readily available in both German and French volumes containing congress documents; the references are in LSRI, p. 47, n. 3.
The Stuttgart congress’s stand against racist immigration laws was reaffirmed by the Communist International (see my forthcoming volume with the proceedings of its 1922 congress) and — as you say — retains all its relevance in our day.
John

I have one question: Is there an English translation of the 1907 Stuttgart resolution on labour migration?

Comradely yours,

Alec Abbott