Canada’s ambassador to the United Nations has compared U.S. President Donald Trump’s Golden Dome missile defense program to a “protection racket” after Trump said his northern neighbor can pay $61 billion to join the program or it could be free if the country agrees to annexation.
There’s the intellectual. It’ll happen. It’ll start small then grow to something much more effective. I’m not saying Reagan or Trump’s ideas are the winners, but there is something that could work eventually.
To your two arguments: “plus 1” problem applies to ground defense systems too, and satellites can be equipped with shielding to protect from shrapnel. Lots of other factors to take into account but my point is these same issues came up in the past with other tech and we’ve overcome them.