. You speak as if the Demon-crats won't ever be in power again... To tackle the problem within this nation (that has truly caused this massive problem) is the best bet, and yes secure that border.
One day the political pendulum will swing left. The Dems will be in power. Courts can still rule and modify any of this.
Once a person is in this country they can sponsor relatives as citizens. They can also invite family in as guests. Those guests then can become pregnant and this whole process starts over again.
The nutty wall does not resolve the fact that the
illegally ratified 14th Amendment makes citizens out of the relatives of non-citizens. It does not matter that these people do not automatically become citizens.
What is factual is that the people will be here regardless of the wall, citizenship, etc. So, my point is, let them be here, but don't think you have to make presence in a country equal citizenship.