this could pump up US stock prices as European money seeks safe haven investments.
a weaker euro implies a stronger dollar which would ordinarily be bad for US exports. But the US does not need as much exports now that it has found onshore supplies of oil. So those two externalities might offset each other.
One good thing that a collapsing euro would do is shut up US liberals who keep arguing for more european style socialization.
No way. The libs would just say and think the right people were not in charge. That is why all this happened.