The verse you misapplied is applicable only to Israel, not to any nation you want to apply it. Your error has been repeated multiple times until it seems to have the unquestioned authority of scripture; it does not.
And even if true for the USA, do you think this current evil population, which twice elected the abject wickness we have now, are capable of turning to God in the meaningful way implied in the verse?
God’s Plan is for all. His Word is for all of us. We can choose to apply it....or not.
“..do you think this current evil population, which twice elected the abject wickness we have now, are capable of turning to God in the meaningful way implied in the verse?”
_____________________
They are capable....and the right series of events might just motivate them correctly. This is why we are called to fast and pray. ;-)