True! Bussing them back to Mexico is easy. But illegal Mexicans are 60-70% of illegal aliens. Illegal alien criminals need to be deported back to China, Central America, Latin America etc. Thus is a logical nightmare. Trains and planes have to be lined up and some will require armed guards and deportees to be shackled!
Many nations will refuse to take back the basura they sent us
You may be fallling into the Bush-ite “mass-deportation” rhetorical trap. All illegals would not need to be removed overnight; just start being serious about deportations when they’re caught, and start enforcing employer fines. Start small, so people aren’t shocked, but then keep going resolutely, and raise the fines. I think the word “attrition” has been used for this idea recently, and it’s probably the right approach.
The sum total of this might take 3 or 4 years. It’s not something that has to be done overnight, and doing it gradually is probably the best way.