Originally posted by SSJGGogeta
1. First off, the statement was not just for Soifon's shikai. It was for ALL sword abilities in general, in Bleach. The statement was made by Aizen himself.He explicitly states that in a battle of reiatsu, if one is large enough, it can "suppress" the ENTIRE ability.
2. The reason Yamamoto couldn't break out of it, or suppress it, was simply that he wasn't strong enough. The difference between Aizen and Soifon was MUCH larger than the difference between Aizen and Yamamoto, who were arguably peers in strength.
The point is that if a character could be one-shotted by another, it is usually accepted that the weaker of the two couldn't hurt the other, even with any special abilities they might have. At least when it comes to Bleach/Zanpaktou.
3. Then finish him off? Aizen doesn't have any attacks capable of SCRATCHING Radditz, let alone finishing him. And if he had Radditz fly into outer space, he'd be out of range of his shikai. Meaning Radditz would simply U-turn, and nuke the continent they're on.
4. It doesn't matter how dumb Radditz is. He is dumb for a reason. There is not a SINGLE thing that Aizen could do to hurt Radditz, let alone kill him. None of his attacks are potent enough to kill someone that can TANK MOON BUSTING ATTACKS without even flinching.
So, to recap, Radditz would simply flare some ki and break out of Aizen's kyoka, and then proceed to rofl-stomp him, before ripping his spine out, or some other Saiyan brutality. 👆
1. Going by Aizen's word is self-defeating as Aizen (via Gin) is the one who told us that the only way to escape from kyouka suigetsu's power was touching the blade itself before hypnosis could be completed.
If Kubo had intended to suggest that it could outright be overpowered via superuor reitsu, he could have easily done so with Yammamoto or Ywhach.
2. You tell us that the reason Yamamoto couldn't break out of it, or suppress it, was because he wasn't strong enough. This is speculative and not supported by anything in the source material. What we do know was that Yamamoto was stronger and that Ywhach is significantly stronger, but the technique worked just fine against them. Therefore, Aizen's comment to Soifon is clearly not absolute.
3. This disregards much of DB and DBZ. Aizen has plenty of attacks capable of dispatching Raditz while his guard is down. Let us remember that even SSGSSJ Goku can be taken down by a mere beam rifle when his guard isn't up. The effectiveness of off guard attacks in the Dragon Ball series has been consistent throughout the entire manga. Here, we're not even talking about getting in one cheap shot against Raditz. We're talking about him getting murdered while he is literally none the wiser (pain, sight, smell, hearing and taste all neutralized or otherwise manipulated) and at Aizen's leisure.
You mention being outside the range of Aizen's shikai, but I don't recall there being any specific range. Only that once someone see's his shikai, Aizen can manipulate their senses. Not to mention that it's a moot point as Aizen can fly, thus stop short of leaving the atmosphere if necessary.
4. You tell us that Raditz would flare up some ki and break out of kyoka suigetsu, but this assumes he'd even know he was under the effects of hypnosis in the first place, much less the issues in #1 and #2.