You can thank liberals and multiculturlism. The population of the US when Star Trek was made was mostly white, literate and acculturated to the same standard. Now we have a very heavy Hispanic culture taking root and they prefer dumbed down tele-novellas and trashy crap.
When the IQ of a nation falls and the culture gets polluted, then you're going to see a degradation in what offered on TV.
Producers want viewers, so they give the people what they want. If trash sells, they keep making it. Of course, the trash was offered before it was demanded and people with low IQs got hooked. Liberals have long bashed the wholesome family shows. They must be thrilled at the shit being served up as entertainment these days.
I am appalled by the number of people hooked on those stupid reality shows. I can't stand more than a couple minutes of any of them. When a celebrity is dysfunctional, they give them their own show.
There must be a shortage of talented writers these days.