2) Beating Drumpf is not enough. There is more at stake in this election than who wins and who loses. What's at stake is the future of political discourse in the US. If politicians think they can win by adopting some elements of Drumpf's message or attitude (all the while discarding his most toxic aspects) then the US has some very dark days ahead.
Republicans have adopted elements of Trump's message since the Southern Strategy in the 60's. They already believe they can win with this message (and they aren't wrong, to some extent), the only difference is that they don't want to actually go through with it once in power.
