I can see one way in which it could be true that the labor supply is reduced, in specific sectors:
The ICE crackdowns are both directly removing large numbers of nonwhite people from the labor pool, and indirectly scaring much larger numbers of them away from it, lest they be the next ones sent to the camps.
Aside from that, though? No, I think talking about reduced labor supply is anti-labor propaganda at best.
The ICE crackdowns are both directly removing large numbers of nonwhite people from the labor pool, and indirectly scaring much larger numbers of them away from it, lest they be the next ones sent to the camps.
Aside from that, though? No, I think talking about reduced labor supply is anti-labor propaganda at best.