Good idea then, good idea now.
But there are loads of policies between military on the border and open borders.
For a starter we can deport illegals, make it a federal crime to issue illegals drivers licenses, send Mexico a bill for emergency health care granted to illegals and if they don't pay it slap punitive tariffs on them until the bill is paid.
Or we could spend our time and effort doing something important and constructive. I'm not sure what that is , but I know what it is not.
In a poll of the top 5 issues that are a concern to voters, immigration is not mentioned.