That's not quite true, many surviving traditional grappling-based styles work wonderfully and and dangerous as hell. Decent striking styles are more difficult to come by, but there is more than one existing Kung Fu style that works surprisingly well in that department. Choi Le Fut is a style used by the criminals because it resembles modern boxing somewhat, although it is more crude it does utilize some tricky angles and brawling-type boxing haymakers. Also San Shou is legit, it has it's own strikes and it intercepts strikes with throws, that's what it's made for and it works amazingly.
Muay Boran (unsporterized Muay Thai) and the nearby countries' versions of it is/are also possibly the oldest striking disciplines and also happen to be effective.
Most of the crap TMA's you see are recently invented or were wiped out and forgotten due to laws. A lot of the old styles were tested and used on the battlefield, so there's no way that they were just as ineffective as they would be later having been wiped-out and rebuilt by those who didn't have the the knowledge from experience and didn't need them to work to survive. There's 0 percent chance of that being the case.
But I guess it doesn't matter at this point.
I respect you answer and which to debate not in a hostile way but in a way where we can narrow down the truth.
Grappling styles, you say many TMA grappling styles work well, do they? Traditional Jujitsu, sumo, aikido, Hapikido, other primitive eastern wrestling styles, im pretty sure they either all suck donkey balls compared to modern approaches or they are at best mediocre ie works vs an untrained opponent e.g. traditional jujitsu but doesn't fair so well vs its modern counterparts e.g. BJJ catch wrestling? Unless you are counting western wrestling as traditional etc in which case it does work well very well.
So one Kung Fu style out of loads works in a mediocre way not as good as boxing. I would say thats mid level like traditional jujitsu not good, not bad.
San Shou is that not a modern style? modified Judo throws, modern boxing, modified evolved kicks? Pretty sure its modern not traditional and yes effective
Muay Boran is not as effective as its more modern muay thai and I believe it was designed during war time I do not buy into this idea that if it is made in war time it has to be effective, and it later gets trashed, can you give me some evidence to prove this idea? I think modern peacetime creates more effective arts than any war time in history. Muay Boran is full of impractical ideas that a modern thai fighter would exploit severely, silly stances, silly flying moves silly climbing on their body moves alot of muay boran can be used in the ring and it isnt because it doesn't work very well not because it doesn't fit in with the rules.
You say the arts were lost, and rebuilt I say whats the evidence for this? How do we know? I think its a flawed idea, I think as time goes by things get better, and earlier in time they sucked more, I think war was more about weapons and tactics, I think because people were isolated from people more that ideas were very limited as were fighting styles, I think the silly ineffective ideas were always there and have remained. You can see it in traditional arts that have not been rebuilt. I mean how much of a reshuffle did they make to the traditional arts? Did Kung Fu not have the weak ineffective strikes and the silly super low stances? Did Karate not have silly spin kicks and axe kicks, did TKD not prioritize low percentage impractical kicks even though it was a more complete style, did muay boran not teach silly jumping moves and climbing moves?
Lets face it just because warfare was more hands on back then doesn't mean they fought better and had refined styles that worked, they were still doing dumb ineffective stuff as were their war time enemies.
Even swordsman ship is better in modern times than it was when everyone fought with a sword, during real war, and thats what really needed to be refined not hand to hand. A Samurai with vast experience killing is no match for a modern fencer thats never killed in his life. The Samerai is just not ready for non telegraphic straight lined rapid lunging blow with the lead hand etc he is ready for another unscientific swordsman
Do you think its possible that traditional martial artists just made up some kind of unsupported ego defense to justify the fact that TMA suck donkey balls?