Why would it hurt conservatives. It is on paper better than what we had before, it gives Trump another accomplishment (somewhat weak but so what) to run on in 2020.
Any consequences from a weak implementation should be laid at the door of the weak Congress and bureaucrats. The agencies responsible need to take lessons from the new ICE management and get serious about enforcing the laws.
On paper? R U kidding? The American blue collar and Reagan Democrats WANT ACTION not paper.