A correct statement would be "Nothing in the universe is certain"(Which is also a paradox).
Thus your claim about "Nothing is" is wrong.
If you don't agree with the term "Infinitely thin", you don't agree with the term infinite either.
Tell me through how many points does a pen you throw pass through? An infinite amount of points, because you can divide any length to an infinite amount of lengths. A black hole's density is infinite, and it's volume is also infinitely small, science doesn't know if it has a volume or not. A black hole isn't just black, it is literally colorless. Because of the gravitational pull of the black hole, the black hole doesn't let any photons, AKA light, to run away. Even though we thought light is "massless", and gravity only affects mass, according to Einstein's theory of relativity, gravity bends space and time and even those same massless photons are affected by that curvature.
Hawking radiation is made out of "hawking particles", those are "virtual" particles, they appear and dissappear instantly (An infinitely short amount of time, that's why they're called virtual), and destroy each other, in such a way that no matter is created or destroyed, they have opposite energies and they DON'T affect what we understand of physics because of their lifetime, they appear at the edges of black holes, the negative one for some reason is being pulled into the black hole and the positive one is ejected into the space, they are NOT photons, are much smaller than them and have an infinitely shorter lifespan, thus cannot be considered "light"
You know nothing of the universe and neither do I.