Good points all. But I don't know that Holland, Germany, et. following their internal policies to demographic collapse is the kind of political punishment I'm talking about here- The US has nothing to do with imigration policy in these countries.
I'm talking about the good, old fashioned punish your enemies, reward your friends axiom that is universal to politics. As a practical matter, if there is no price to France for selling arms to China, they will continue to sell arms to China - their internal immigration policies are irrelevent to this.
I do agree with your point that if other countries choose not to fight for their own survival, that we should not get our knickers in an uproar - we do what we have to do. However, given the historical tendency for European "stupidity" to spill over their borders, we (The US) are not in a position to simply walk away from their suicide pact. Another war in Europe will almost certainly involve American soldiers.
good points, as well. It is a difficult and complex path to nagivate with these old-euros; their lack of nerve and current policies point to - if left unchecked - certain self-extinction. Yet they possess some strength and capability and (from this perspective I see connection in your points...) consequently our diplomacy should be geared towards at least mitigating the negative impacts their capabilities can cause; at best getting their small-rudder ships-of-state to slowly slew back on-course.
In this respect, I think our current President and policies are correct; to continue the above analogy, it is certain that the old-euro ships are in stormy seas, but it could be worse... the US could be a reluctant passenger (as Kerry would have had us be...) whose fortunes relied entirely upon the old-euro captains.