Class? Republicans are not a "class" properly speaking but rather members of the Republican party or voters who vote Republican. Just as Democrats are not socio-economically homogenous, neither are Republicans.
As for shame, reasonable people don't expect cretins to have any which is why Mr. Bahr's letter is so perplexing. I suspect he doesn't have a sense of humor since Trump is obviously supremely ludicrous if in a "sick humor" sort of way. Let's face it, he makes all Americans look pretty stupid. But he really is a perfect fit for the Republican party, a sort of culmination of sorts of their years of smoking political crack. 
Are Republicans scary? Obviously.  White ghouls always are but instead of them getting a rope and wildly looking for a black man any black man, they're coalescing around a guy that's going to drive their party into the ground. Poetic justice is indeed gratifying.