I'm not sure if this was meant to be sarcastic or not. Just for the record, Chuck Norris and Bruce Lee were good friends and trained together for a couple of years. (I've seen a letter where Lee claimed that Norris was a student of his, but it would be more accurate to say that they were training partners who shared techniques with each other.)
(Edit, while I was posting this I see that you've added a clarification that it was sarcasm. I'll leave my original response in for any readers who didn't know the facts. Not everyone is familiar with the relationships of famous martial artists from 50 years ago.)
Really, this isn't something I'm interested in debating. For two reasons:
1. I already said that varies based who they're sparring with (karate, MT, etc)
2. The big elephant in the room that no one's talking about: what PhotonGuy is saying isn't something he pulled out of his other end. It all falls perfectly in line with the reputation that TKD has had for decades. Since at least the 80's. And, back to #1, the videos you can find appear to support that reputation.
If anybody wants to say that watching videos on YouTube isn't enough, and that I actually have to train in TKD long enough to get a black belt in order to know what I'm seeing... as bad as an argument as that is, I don't have a good comeback for it.
But what I do want to say is the fight here shouldn't be with PhotonGuy. Either there was a change in TKD and the specifics of that change need to be pointed out, or the reputation is a false one and THAT needs to be addressed.
I think you might have lost track of the original claim by PhotonGuy which is being discussed. PG stated that
old school TKD from the inception of the art in the 1950s was practically all kicks. This is demonstrably not true, as evidenced by the earliest available footage of TKD training, the published TKD manuals, and the testimony of those who trained with the first generation of TKD instructors.
As far as the change in TKD over the years which leads to the preponderance of kicks that you observed while surfing YouTube, I believe that has been pointed out in the thread already but I can summarize it briefly.
Original "old school" TKD was primarily Shotokan karate with a few other influences. Over the years, the Korean instructors of TKD worked to differentiate the art from Karate for reasons of national pride (and general antipathy towards the Japanese). One significant aspect of this was an increasing emphasis on kicking in general and high kicks in particular. The development of WT style sport TKD competition in the 70s and the recognition of that style of competition by the Olympics in the 80s led to a large percentage of TKD schools focusing on that aspect of the art.
The members here at MartialTalk skew older than the general population, so you'll find a higher percentage of practitioners who remember and/or still practice and teach the older, more balanced styles of TKD. Random sparring videos on YouTube are statistically more likely to show practitioners from schools that focus on the modern, more sportive styles of TKD, which will include a higher percentage of kicking.