We shouldnt have to round them up. Make it impossible to get a job or find a place to live and they will leave on their own. Throw a few employers and lanlords in jail and watch how quick they get their keesters out.
Enforce the law (read Simpson/Massoli 1986 Law for starters, that's what Congress passed to ensure Reagan's amnesty was a 'one time only' thing that would never be repeated)'on the books and not only do you not need any "immigration "reform" act, you also don't need federal agents knocking on doors, showing up at schools or doctors offices, grabbing illegals in churches worshipping, giving the bleading hearts (but mostly media in favor of open borders so they can continue to have their cheaper nannies and yard guys) turn the public away from enforcing the law!
One major thing that can turn the tide is seeing HR heads, COOs, Dept. heads marched out the door wearing handcuffs for knowingly hiring illegals instead of American citizens, namely the white and black guys who are on unemployment thanks to corporate heads, boards and others shrinking the bottom lines to look good for Wall Street.
The fact that man HR departments have taken to look to "independent contractors" to fill their ranks, keep the dirty hands far from the front office, doesn't help much and the fines, if companies are caught, are barely a blip on the bottom line, doesn't help much but if stiff and swift jail sentences with no plea bargains, might deter some. However, running weekly roundups of those responsible for hiring illegals and showing these companies on the nightly news, sure could help.
We already have proof that mere ICE or the former INS agents showing up makes illegals scatter. That and no more companies operating employment offices south of the border, will go a long way toward deterance. The term "self deport" really is true for many but the most hardened cases. Then agents can knock on fewer and fewer doors!