I agree 100%. I am not exactly shedding tears over these people leaving the US- hell I am actually glad. However, there should be one condition- they must be required to forfeit their chance of ever reinstating their citizenship and of ever voting again in the US. Also, they (and their kids) must never be allowed to draw any benefit from the US government.
add to that they must submit to being sterilized to help eliminate the imbecile gene they carry.