and manpower to process all the requests for admittance in months instead of years...just read GOP Senator Lankford's summary of the bipartisan Senate Bill, or watch his speech on the Senate floor. All you have to do is a little typing, like you just did ;-)...or be willfully ignorant.
btw, use the proper term...those immigrants who have been let in are 'Un-documented" awaiting final processing of their applications...they are not criminals. What IS criminal is DJT killing the solution to our problems in that arena for purely political reasons.