Once illegal immigration has been effectively curtailed, the only question left, is what to do about those illegal aliens currently in the country?
If we havent been doing anything about those currently in the country then illegal immigration wont be effectively curtailed. The first place we have to start enforcing the law is inside the country. Amnesty would destroy any success.
The amnesty would be granted to legalize those illegal aliens we did not effectively deter from coming into the country. Any future illegal aliens would be deported according to the immigration laws.
UH uhhh... Gee when have I heard that before...