They will flock to sign up for a chance to stop hiding, to earn legal wages and any benefitsHow many do you think will sign up? Why would they want too take a pay cut by having to pay Social Security and state and federal income tax?
The only reason I can think of is if they can cash in on the EITC, which will cost the taxpayers.
And to take jobs away from low end American workers who need the jobs the most. Nice going.