Clayton Kershaw is the best pitcher of the 21st century. This much isn’t really in dispute. A career 2.48 ERA and 2.82 FIP over 16 years is unimpeachable. There’s three Cy Youngs to go with it, and an MVP in 2014 when he had a 1.77 ERA and a 0.857 WHIP, which is beyond stupid. He probably should have one or two more…