: That is somewhat debatable if only because DBZ can amp the force of its blows with ki. It was never so much about how much they could lift as opposed to how hard they could hit and what they could blow up. Freeza is multi-planet and Cooler is arguably star-busting in his Ult-Form. The whole thing about their strength is joked about quite a bit. Perhaps more by Team Four Star than most. Like in the "Cooler's Revenge" abridged.
It is enjoyable to see them joke about how idiotic some of the things in DBZ are while keeping it entertaining. Then of course at 13:30 we do have Ult-Cooler planting his Dumbass Tree, where he just visually re-performs what Freeza did to Namek, except with a punch instead of a cutting ki-wave.
Still, we know they aren't without their durability. A mostly dead Freeza with half a body survives namek exploding and some part of Cooler survived getting blasted into the sun. So their resilience against concussive and kinetic damage is quite high, along with temperature extremes.