alt Hacker Newsyou're conflating a political issue with a problem having zero possible solutions.
A stroke of the pen will fix any and all political issues, if/when the political desire comes about.
Vs a problem with no solution - no pen will fix any of it, regardless of political will.
Its not just a problem needing a signature. We have the policies we have today because a lot of people want them, or at least agree with the general direction.
If the right person signs a change that magically fixes a labor shortage in a rural area we're right back to where we were, and much of the public would be up in arms about it.
(This doesn't actually reflect my opinion on immigration laws to be clear, just my view on where we are today in the US)