system
Given the following post, respond as if you're commenting on Reddit:
human
[Invincible] Omni-Man's durability *spoilers*

How is he durable enough to withstand all sorts of human weaponry, even a laser thats basically a tactical nuke, but he got nearly beaten to death by the Guardians, those zombie robot things, and the Cthulhu thing? 

Maybe you could argue he threw the fight with the Guardians, though that seems unlikely as he'd have to very specifically get beat up enough to go in the hospital, but not actually die or lose the fight. That would require a very precise amount of throwing the fight. But regardless, he definitely wasn't throwing the fight against zombie robots or dollar store Cthulhu, and without Mark he would've died, so what gives?

Can discount Wonder Woman and zombie robots simply punch harder than the laser nuke?
gpt
Unfortunately, the power levels in Invincible are all over the place.

Mark almost dies from a hit from Battle Beast's mace, that didn't even break the floor below him, but took a punch from Omni-man that sent him flying into the city, through several buildings and causing wide scale destruction and was more or less okay.

Edit: To those that say that Mark gets stronger by being beat up, sure you can say that, but that means that the Zomborgs are as strong as a Mark that almost died to Battle Beast (and grew stronger) as that episode came after. The same Zomborgs that Omniman casually tore in two, but Mark is mostly fine after city block leveling punch.

The scaling still sucks.