Also it’s not practical to round up 12 Million people and deport them.
We need to do it on a basis when they come into contact with LEO or any other government agencies and if they are found to be here illegally, they are then deported.
At the same time, we seal our borders.
Deportation by attrition - those that come in contact with law enforcement, social services, medical services, any type of government agency and are found to be here illegally, they will be deported.
How do you propose we go about finding and rounding up 12 million people and deporting them?
We first need to take control of the Senate and pass anti-illegal alien laws, then elect a President that will enforce these laws and not veto them.
You make it impossible for them to get work and then you ask them to leave. In the interim, you cut off all government benefits.
Most of them will eventually self deport.