They used to be a common sense part, but certainly not under Big Don. You are correct on Kavanaugh. Russian collusion is and always was a republican hoax, often advanced by Donald Trump, who quite rightly said "So What?" There is no federal law against collustion. So collusion is exactly what he wanted out front. The question was whether he or his campaign were in contact and conspired, seeking to coordinated the release of information, the campaign knew was stolen by Russia, (within hours after he called for Russia to look for Hillary's emails) and coordinated the use and release of stolen property, indirectly from Russian intelligence. I have a marked up Pdf, (downloaded directly from Justice Department) mis- characterized by Barr for over two weeks in order to get out ahead of the story. It is indeed pretty shady, but a very long read.
You can tell what Trump thinks of minorities by how many he has cabinet positions and other appointments. Apparently there were few who could qualify for this high standards we have seen him employee to make his selections. I agree Trump could care less about women in general unless they are good looking and are impressed by his money and fame. I understand if you are rich and famous, you can grab them by the private parts and they don't mind a bit. If he gets a stirring, morals go out the window, along with cares about his wives and kids, but this is OK with modern Republicans.
He is not the type of President they taught you about in civic class or held up as an example and quoted in history class, and this is fine with modern Republicans. He is more like the kind of guy you discussed case-law about in college classes. Republicans used to remind me of the US Senate, kind of a bulwark against flighty populous movements. They worked with the Democrats, but from a different point of view. They certainly never forsook their own core values to embrace a life-long Democrat populist as their party leader and standard bearer.
You asked my opinion, so there you have it.