Re: Although Trump's lot have taken 'thick as poop' to new levels...
Whilst I don't disagree on your characterisation of the Kenneth Moore character, this was a film from another era, and actually played into the character's limitations as part of the story. It was totally intentional, poking fun at exactly the attitudes that you found objectionable. I think the theatrical term may best be described as 'farce'.
I believe that if you were to look at so many of the films made before the 'enlightenment' of the entertainment industry, you could say something similar. We just have different sets of what is acceptable nowadays, and without actually being there at the time, it's difficult to accept that we ever found such things acceptable, but most of us did to some degree or other. You can say in hindsight that we were wrong, but even that is applying modern morals to historical attitudes.