"We Are a Nation Made Stronger by Immigrants"
Great, agreed.  Legal immigrants who become citizens and integrate culturally and become America-first.  We treat our citizens first.  If green card and visa holders want to make that next step, then fine, but they don't quite have the same weight or say as citizens until then.  We decide who is allowed -- foreigners don't have a right to be here because they crossed a border or dropped a kid here.
Sorry if this is going to f-up your labor costs and complicate some HR matters, Tim, but we haven't been doing things right and enforcing the law for decades.