I have no idea WTF you're talking about.
First off, two wrongs don't make a right. The IRCA of 1986 taught many people a good lesson about illegal immigration. Looks like Dubya wasn't one of those people.
Maybe if the employer sanctions that included up to a million dollar fine hadn't been gutted by Sen Ted Kennedy and others on the left, that 1986 amnesty for 2.7 million illegals would have been what it was meant to be. A one time only amnesty offer, period. Instead, what Reagan signed off on turned into 20 years of liberal immigration policy from Bush 41, through Clinton and onto Bush43. Now Dubya wants to grant an amnesty to 15 million illegals.
That is not "some left-wing conspiracy", as you call it. Its called, liberal immigration policy, and Dubya along with Pubs and Dems from Kennedy, McCain, Giuliani and others, support it.