The big fear is not that Trump isn't effective -- eg. as an opposition leader - he would be devastatingly effective - but, the problem is - when he gets the job of being in charge - I believe he just won't have the answers.
It is a vastly different thing to be able to show anger and point to the problems ----------- we all know the problems ----------- but, it is a very different kettle of fish to be able to do anything about them.
I believe that we shall get to experience what he has to offer - I believe that he will win.
Of that, I am pretty confident - what I am not confident of is just how things will go when he does.