There's no fucking reason why Wario should've beat Dedede and I'm glad death battle and the research team agreed
>muh star children
Doesn't mean shit. He shouldn't scale to those who matter at all:
He faces Bowser once in a Mario 64 remake. And it's fucking optional.
Mario he faced twice. He lost both times. One was in a puzzle game and both were literally over 25 years ago.
The yoshi constellation thing is debatable, but no where is it implied that all Yoshis have that kinda power.
>muh mind control
We have no idea how Wario pulled that off, also it's likely it took multiple days or weeks since it was while Mario was rescuing Daisy.
And while Dedede constantly gets mind controlled, it's by
Dark Matter
Yin Yarn
Taranza
Dark Matter is an eldritch being, Yin Yarn remade the entire planet and also controlled Meta Knight, and Taranza is a powerful telepath who specializes in puppetry.
I seriously doubt Wario's mind control is comparable to them
>muh immortality and regen
Immortality doesn't mean shit in death battle. As long as you're taken out for a good amount of time you lose.
And Dedede's attacks are wayyy above the shake king. Unlike Wario, Dedede can reliably scale to Kirby on account of fighting him every game while being presented as a threat, and facing many of the verse's powerful bosses, either alone of with Kirby mk and bandana see
Also if you wanna go by game mechanics, Wario burns to ashes by regular fire. Dedede's fire attacks with his hammer are comparable to fire Kirby, who can harm Pyribbit with flame attacks. Pyribbit lives in fucking lava.