Obama started most of that. I remember marching with immigrant groups in 2012 calling him the deporter in chief because he rolled out ICE so hard. Liberal reforms like DACA are always paired with more brutal enforcement of the existing laws.
The Biden-Harris administration also bragged about deporting more people than Trump. Democrats have no intention of going back to the loose enforcement of the 80s and 90s and support the huge ICE CBP complex.