The permission of such immigration seems to me to have been a most flagrant example of culpable unforeseeing negligence on the part of those authorities which permitted it. That such a situation would result in severe internal tensions could have been foreseen by any reasonable person who had paused to reflect and who had considered what had happened and is continuing to happen in the United States; and those in authority who failed to foresee this, or, if they did, nevertheless permitted the kind of immigration which would inevitably lead to it, seem to me to be deserving of the most severe censure.

C. D. Broad, Autobiographical notes (August 24 1954 to December 31 1968), in Joel Walmsley (ed.) C. D. Broad: key unpublished writings, London, 2022, pp. 13-110, pp. 94–95