"The Dims and their media allies want those 30 million+ new voters pretty badly, don't they?"
Yep.
Given the Roe Effect (hat tip to James Taranto of WSJ Online), it's the only way the Democrats can remain demographically competitive in the long run.
Unfortunately, it's not just a way to stay competitive, it ensures Democratic DOMINANCE if there is a mass amnesty.
Worse, let the Democrats get the Congress and Executive in their hands, and computerized voting without paper records allows their famous election corruption machine to ensure permanent Democratic majorities. Bonjour Sulla's Republic.