It isn’t a matter of “can’t”, it is a matter of “won’t”. The people in charge of speaking for (representing) conservative positions aren’t even pretending very well that they are in sympathy with conservatism in any way, shape, or form except in word only.
This country WILL NOT SURVIVE, as a sovereign, until the next election, and that is the desire of the administration. Those of the “republican” stooges that realize this desire only to survive, hopefully with figurehead power, as operatives in a “new world” (the words of Bush 41 among many others) regime.