Welcome
I get where you are coming from totally
Aikido does get a bad rap in certain circles for sure lol.
I know what you are saying regarding Seagal and Shioda however do bear in mind that the later did leave before the last war from Ueshiba's teaching (yes ok he did go back briefly and he never really severed links totally as his last ranking was awarded to him by Ueshiba and that was after he had formed the Yoshinkan and if memory serves he had already started the Senshusei course (ok for the police at that point) so his Aikido was different as it was the pre war Aikido) The former I don't know where he actually developed his style from, yes he did study Aikikai at the honbu but not under the founder (that is a myth he kinda put out - sorry but it it not true-) He was the real deal at one time and yes he does hold the rank he claims with out doubt, I just have a few issues with who he says taught him ( imo it not the second doshu style and Shioda shihan was long gone) I just am not sure where his Tenshin ryu came from unless it was his own personal studies that took it there, which is uite possible as he did teach in Japan tho of the vids I have seen it was slightly different to what he latterly taught but that my opinion.
Now he needs to lose a truck load of weight as if he took ukemi now he'd kinda ummm go through the dojo floor (sorry but jeez he is seriously big now) and the last I saw him trying to teach it was not good at all as he couldn't even get into seiza or move properly
I totally agree with your post.... Shioda left o'sensei early on but that doesn't really mean anything to me because I believe Aikido is not only what happened after the war, it begins long before it was even called Aikido, through a huge chain of warriors before O'sensei... Minamoto No Yoshimitsu, Sokaku Takeda, O'sensei himself were very important links of the chain but none of them was more important than the art itself... So I don't believe that Aikido should be considered as founded by o'sensei... He was just one of the most recent links, a great warrior perhaps but no single person should be considered as a founder of any martial art... So, Takeda, Shioda, Obata...are Aikido related persons, at least for me.
As for Steven Seagal Sensei... Well, what can I say, you are absolutely right... That's why he will always be my biggest inspiration apart from my own Sensei who is my main inspiration... Because Seagal Sensei is clearly showing to us that even the greatest can fall back if he gets too comfortable.
That's why I always try to copy his earlier technical skills (as much as I can) and avoid his later mistakes...
As for Seagal Sensei's background :
He was in and out of Japan while o'sensei was alive, he has seen him teach, he was never taught directly by him,he doesn't lie it's a misunderstanding that he has clarified many times.
He was an inside student at Hombu Dojo back in the days of Kishomaru that's true and he was a student of Tohei Sensei but they parted ways when Tohei created his own organization... In the early days of Tenshin dojo he was merely teaching a ki-aikido kind of approach, same as Tohei, but he worked his way through a practical approach by studying and modifying the techniques further, there are witnesses to that, one of them is Haruo Matsuoka Sensei who has been his first Uke for years....
His first contact with Aikido had been made in the states prior to all that at Orange Aikikai under Harry Kiyoshi Ishisaka Sensei, but he was in Japan when he says he was and he was the first westerner to open a dojo in Japan, in Osaka.
Although he could have used his Hollywood fame to sell his Aikido as his own Ryu he is maintaining until now that there is no Tenshin Aikido, he is under Aikikai. Tenshin is the name of his dojo but many of his students used as a style name to advertise themselves while he is refusing to do so...
Sorry for the long and a bit off topic post...