You are confusing sport with self-defense and killing techniques.
Muay Thai is a sport like boxing. They wear gloves. They have rules.
It's certainly useful in a bar fight.
True karate is for disabling and killing an attacker and uses strikes to vital targets.
I am talking about true karate, not what they teach your kid at the local karate school.
Would you say Muay Thai is superior to military style combat techniques or street fighting techniques designed to kill?
I'm aware of the difference. We are are talking about ring sports and the way they are both taught to the vast majority of people.
'Muay Thai' is part of the same family of fighting style which includes Muay Boran, Lethwei (Myanmar) and Pradal Serey (Cambodia).
Which were created for, and used on the battlefield in the constant wars between these South East Asian kingdoms.
Muay Thai has been adapted to western style boxing rules in order to be a competitive sport but it's original form and origins are also for killing.
Lethwei is still bare knuckle and includes head butts and throws.
Muay Boran still retains strikes for killing or maiming which the sport version obviously cannot use.
Muay Thai movements are designed to be as practical and effective as possible without any rigid stylised techniques being used as in Karate.