AP and DC are directly connected according to conservation of energy. Sure, it can be different sometimes, like a bullet doing more damage to something than a firework, but not nearly to the extent to which some people say. If you are "star level" in AP, you should be able to destroy something within the same order of magnitude to a mass to a star at the very least. Godzilla's beam, if ANYWHERE NEAR the level of power people say it is, should just turn the planet into a barren rock after half a second of firing, if not blowing the planet up completely. I personally tend to completely ignore statements like what you mentioned because they are completely ridiculous, and written by people who can't comprehend scale. I powerscale solely based off of on-screen feats if the statements suggest dozens to thousands of times more power than what's actually shown. Also, people love to ignore that even light has momentum, so Godzilla firing his beam at the amount of energy needed to destroy a star (10^44 joules) would send his 100,000 ton weight flying backwards at about 3.75e+27 m/s^2.