The birth rate is falling among Americans because of a lousy economy.
The current bias towards unfettered immigration in Mexico ignores the fact that the offspring of such immigrants do not constitute a paying class of citizen. Rather, we get more people who live off the government.
Ms. Chavez buys into the idea that the government exists to transfer payments from one person to another. That is a bastardization of what government responsibilities really are, but it is what the Democrats and Obama are increasingly turning the government into.
Even if we were to adopt her solution today, assuming the offspring were a net positive contributors to government, we are too broke now.