We have vast differences. To address just two:
The protests against Reagan's placement of missiles in Europe were, to a significant extent, the product of pro-Soviet political parties and by pacifists in the West. The governments involved, after giving them as much lip service as their particular political scenery required, ignored them because they took the missiles to be part of America's defense against the Soviet armies, which European governments saw as a serious threat.
Few in the EU today regard Iran this way now and, as for Russia, they regard it as a very necessary source of energy and worry about anything which threatens that. It is the view of many European LEADERS -- not the half-assed fellow travelers who opposed Reagan -- that the Bush Administration shares much of the blame for Iran's present militance by having blown it in 2002, when Iran was more than willing to cooperate (it actually WAS cooperating in attacking Al Queda) with the United States against terrorism if granted diplomatic recognition. Nobody wants to piss the United States off with a direct "take your hardware home and shove it," but nobody in Europe will lose any sleep if Bush is forced to back down by the Polish and/or Czech parliaments.
As for your argument that we should now build a missile defense system that can work only through blind luck -- if even that -- with the intention of fixing it afterwards, I find that a strange set of priorities. Spend billions of dollars -- at a time when the nation is deep in deficit and facing far worse deficits in the future -- on something that is necessary PRIMARILY because the Bushies have been unwilling to adopt diplomatic measures that worked -- for better or worse -- in the past. Spend it not on something that fixes the problem, but on something that MIGHT fix it someday although we have no idea when that would be.
Rational people don't do things like this, Larry, and you know it. This is another example of "starve the beast." Jack up the deficit as far as possible -- and after all the money ends up mainly in the hands of aerospace corporations -- and then we can shoot down Medicare and Social Security because "there isn't any money left."
Tell you what: when I see you demand that Bush repeal some of his tax cuts to pay for missile defense, then I'll take you seriously.