This is American Kickboxing (you can tell by the trousers and the Punches and Kicks above the waist only), and those 2 guys are American Kempo Karateka's.
Please do some research, it will save you from embarrassment.
How do you know ?
I wonder that you judge from what the fighters inform or only watching the clip I posted.
If American kickboxing fighter informed that he were a taekwondo stylist , would he be a karate fighter or taekwondo fighter ? would you argue or accept ?