I'm new here, and trying to learn....

So what is a sane, doable and sensible immigration policy?

Most of the posts I see here are against restricting immigration, but I can't believe anyone actually
wants to fling open wide all the doors and allow anyone to come in with no vetting at all. I know I
wouldn't want that.

The other end of that binary notion is to build a sort of extreme "Trump Wall", and shut out entry
to virtually every potential immigrant, that's just as idiotic. So there has to be -some- middle ground...
the obvious problem is determining how and where to 'draw the line', as it were..

I admit I don't have the first clue. I only know it has to be somewhere between those 2 extremes;
what do you guys think?