No they aren’t reasonable, because most of those things won’t change because you close the border. We know this because we have plenty of rigorous studies to show us that.

Please link the rigorous study that says human/drug trafficking won't change if you close the border.

Locking it down to legal point of entries only can do nothing but help.

It's easier to secure a few locations than many miles, you don't need a study for that.

The War on Drugs is a pretty good study. Also drugs and trafficking don’t only come from Mexico. US-Mexico isn’t the only border.

So trafficking comes from other places so no point in reducing it in places we can control?

We monitor ports of entry. It's easier if you don't have to monitor the entire border, you can focus more on ports of entry for other trafficking sources.