I will add something though...while Ueshiba may have been very focussed in certain areas we have no information that his vision for aikido is what you think. Let's think about that...at what point did he speak to the westerners on mass and say...you guys should do what Mark etal says?
When finding his students trying to make things work in real life he stopped them saying basically he spent his whole life doing that so they didn't have to.....were those kind words of protection I wonder.....did you?
And so you see while not a definitive answer by any means you think he wanted you to be the same as him...whilst you don't have any idea what he really went through. And if you don't know how can you say that you are doing his aikido and others should too?.
Now if you start to think a bit more you will see that you generally point to only 3 or more people really with power out of a nation of how many?. So is it a safe thing for the masses to have?....I guess at your stage you don't really know. I've stated you can get very sick...this stuff can mess you up big time...
Practises have to be followed correctly and imho its essential to be be led by someone with true understanding that's been passed down for a long time...do you have that? do others?....even simple things can mess up a person when done wrongly. You're spouting to lots of people who you don't know who can then easily go and get things very wrong...hence I say you are irresponsible.
I have little more to say.
All the best
If you are aware that Aiki training is dangerous, I think the responsible thing would be to discuss how it is dangerous, if it is possible to train in a manner to mitigate the danger, and provide evidence for why it is particuarly dangerous. Otherwise, one might construe your comments as being deliberately provacative.
I will state that if you can do "aiki", like having any other knowledge of things others might not be able to do, one could easily develop a big head and lord that knowledge over others, but I assume this is not what you are referring to.
I don't think anyone who is talking about aiki, or IS/IP has ever said only three people have it. I'm pretty certain that names of other people in japan have popped up like Kuroda, Akuzawa, Ushiro etc let alone those in Chinese based arts.