"The GOP has created a monster and now has to deal with him…."  I feel the same way. They created a monster of political extremism over the last 20 years, and most of the party faithful were all too willing to let let it wreak havoc on the political system (without regard to the welfare of the country as a whole), as long as they benefited from it. Now they can no longer control it. 
Just desserts, I suppose. But you would have to be a shortsighted fool (or an extremist of the other side) to take any delight in this, as this "monster" is just tearing the country apart. As to Trump, demagogues come and go. What is disturbing to me is the millions of people who have drunk the "kool-aide" and hate the Dems/Hilary/Obama so much as to really think this guy (or someone like him) is the answer to the perceived woes of the country.  Unless Trump loses resoundingly (doubtful, if at all), I think we may looking at another demagogue (but a little more smart/clever) further down the line.