Labour pivoted way to the right on immigration and it didn't get them any more votes. There's nothing they can do to get that part of the electorate and it's a waste of time to try to cater to them.

Hmm, their manifesto said "A fair and properly managed immigration system"... That's the absolute minimum lip service and a platitude, not any sort of pivot, which they cannot do considering the various power groups within the party.

Since then it's really only foreign students who have had issues, so the group that probably makes the least sense to 'hit' (although there was abuse of the system that needed to be addressed)but the easiest politically, again because it's the least resistance path within party and party supports while allowing to say that they are acting.