If the government could get the banks back in shape so that they can give loans again, the plans might have some value.
However, it seems to me that international cooperation on all these stimulus-bailout-support plans is necessary for them to have major effect.

All major countries are using the same stimulus plans, but nothing is coordinated.
All, especially the U. S., pay attention to local difficulties, but the problem and its resolution is global. No country can survive on its own (No major power ever did).