Enzoomafu is the only one straw manning that everyone else is arguing that it translates into literal planets being lined up and all destroyed based on a multiplication factor, and therefore collaterally they're weak because they couldn't. Everyone else is just going they're a lot more powerful than that. Simply mocking it and straw manning doesn't erase that fact. Are these characters not wildly more powerful or something? Why would we ignore this just because you can ineffectually mock it?
Ironically he also brought up not breathing in space as an important point, and it is. No one would argue against that, and that is possible in a thread. The problem is you can't acknowledge that and then try to attribute dying in space as a durability feat. That's very incongruous with what you know and have argued. Disingenuity gets caught; don't do that.
And to an earlier point that you landed on again, it was the fact that Earth was going to blow up yes. That is why Second Form Cell was so dangerous. It wasn't just the potency of the attack, it was how they couldn't attack either him or stop his attack due to the nature of it. I don't understand why we'd assume it was the minimum required focused energy either but I know why you would...
Basically in any other beam attack or ball threatening to destroy the planet they can simply stop it or "redirect it" in the complete opposite direction with a kick. We saw Cell try to destroy the Earth earlier and Gohan blasted him. With a bomb he just simply blows up and there's nothing to "redirect" it just hits the Earth and it goes away. Unless you think that attack was the same potency as Saiyan Saga Vegeta I'm not sure I understand your usage?
The issue of spreading energy over large distances may very well be a weakness but that doesn't speak to the potency of the attacks focused within. We saw Kid Buu casually fire an attack at Earth that would have destroyed it, and Vegeta instantly shoots it away. Kid Buu then charged up an attack that both Vegeta and Goku could not deflect no matter what and surprise suprise it "only" destroyed Earth even though it was many times more powerful. It's basically IG vs UN arguments. Some simply have more scope while the area of effect is more focused. Eternity fired all his power against Thanos and it was contained within a small sphere. You would say control of power and bingo you got your answer!
Goku's power could be relegated to a 100m distance at max and that wouldn't erase him being more powerful than all the other characters with greater feats. As a Marvel and especially Sentry fan you should understand that collateral damage means little. It doesn't need to be continually focused on when the earlier examples exist. As you acknowledged the Saiyans can breathe in space, so why not just have them fighting in the middle of solar system battles because that's possible with the restrictions.
And that leads to you then arguing that just random varying levels of planet destroying are a direct threat to durability. If you're under the assumption that SS Goku hitting Frieza with attacks that hurt him would have more effect than 1st Form Frieza's attacks then congrats; you agree Goku is focusing more attack into a small area than a planet destroyer can put out. Frieza then gets drained almost completely, cut in half, given a tiny bit of Goku's energy, and then blasted again, and THEN survives a planet blowing up right under him. It's not the planet destroying that's the threat, it's the - as you acknowledged - lack of breathing in space. Frieza even taunts Goku with that while doing it.
As well as core busting, Frieza specifically held back power and completely destroyed Namek's core. It's not just destroying the core and the planet immediately blows up in Dragon Ball, there's than that.
If Galan can post Frieza booting Vegeta's attack away that could destroy Namek that would be swell too. Simply redirection, nothing to do with might.
There's probably some more stuff but you won't respond directly to me so there's not a lot of care involved here.