For one more time (are there any other ones?) I will solve the confusion of your mind caused by my words.
Taekwondo is a good martial art and it is more brutal than Karate, true. However, I repeat they've turned it into a sport, so it is for gays now.
Despite your "5 and a half" year of training, believe me you are easily defeated by a Muay Thai fighter.
Dont blame Taekwondo for this. Blame the asshole teachers who teach it.