Bills is a God and you don't even know all of his powers.
SS is just a herald,
where is your logic?
If he's not omnipotent God, then this is argument doesn't hold water.
Thor is God, Hercules is God, Odin is God, and even then some of the reality-warping conventional superheroes can easily beat them. Silver Surfer battle so many gods throughout his life.
No in Marvel Thor is just an Asgardian. We can call them Gods, or Aliens it doesn't matter.
A real God is supposed to be a mystical entity. In certain mythologies (like the greek) a real God is immortal, and i'm not talking about aging... they can't really die.
So just because Asgardian's Gods are vulnerable to certain things it doesn't mean that every other God would be the same.
Thor is the God of what? thunder? thunder is a weak phenomenon... they can't even destroy a planet, that would be a weak god...
Bills is the God of Destruction of the Seventh Universe!!!!
Do you see the difference?!?! Silversurfer can't compete, you must be stupid if you don't get this. (sorry, but it's true)
Don't call me stupid when you don't even know my background, I remembered that you think a DBZ character can beat anyone from DC or Marvel.
Though this is not that relevant, Thor can destroy planet, and he have done it more than once, with little effort too. Asgardians are not aliens as they're born from mystical source rather than nature, so they're considered Gods as well as Olympus. Asgardians, many of them such as Thor and Odin have come back from the death as well because they're partially metaphysical in nature.
Bills is not on sky father's level, he can blow up 1000 more galaxies and Odin would still defeated him because blowing up things can only get you so far. Apparently Bills is not on Odin's level, so Surfer have more than a chance to beat Bills. Not to mention DBZ universe is probably barely the size of Virgo cluster.
What makes you think he'd not on Odin level, if the statement about bills blowing up half of the universe, this make his Ki way over 100,000,000,000,000,000,000,000,000,000,000.,000,000,000,000,000x 100,000,000,000,000,000. So this makes him immune to a good number of attacks.
Some people still think just raw destructive power is enough to qualify someone on Odin's level. Did Bills ever show telepathy, reality warping, creation ability, telekinesis, soul manipulation, energy and matter manipulation, size manipulation, or time manipulation? Blowing something up have limit. One pro-DBZ debator (forget his name, but he's very experienced) admit that there's no DBZ characters that is on Odin's level.
Franklin Richard is probably a universe buster, but is he inherently invulnerable? No? Does that mean he can survive universe-busting attack (unless he wished himself to be indestructible beforehand)? No!