Boxing vs Tae Kwon do (self defense purpose and street defense)?

Boxing, and martial arts like muay thai or krav maga, as tae kwon do and karate, especially the watered down versions in the united states, are pure finesse and no substance. They focus too much on doing fancy kicks and forms instead of training strength, timing, or endurance as in boxing or muay thai. It's much better to be able to throw a good punch as a boxer than to know a bunch of watered down moves with no power behind them. If you need to get out of a situation quickly, quality is better than quantity.