I didn't read through the entire thread, as I knew that a topic with such an inflammatory title would probably get a lot of people going, but I would suggest that the OP either rent or locate an online torrent of the Star Trek 25th Anniversary Special. That way, they can see exactly what Gene Roddenberry himself said about the difficulties in selling and making TOS.
As has been stated, back in the day, the studios wanted more westerns, action, and John Wayne-manly bare-knuckle fistfights. Gene Roddenberry hated that idea, but he also wanted to sell/make Star Trek, so he rewrote the original pilot to include more action and a bare-knuckle fistfight.
For its time, TOS was ahead of its time, and like it or not, you cannot make children without parents.
I do not wish to speak for the OP re: any real specifics, but in a couple of follow-up postings YARN did say that the thread topic was offered a bit tongue-in-cheek/thought-experiment, and yet was surprised how strongly a few posters actually felt that TOS should be (and actually COULD be) cut from canon.