Widespread beliefs are not laws.
Look to the genesis of thermodynamics:
The short range interaction field, the electromagnetic one, that allows the atomic structure and the transfer of energy, heat, in the collisions of atoms and molecules was, for sure, present in the analysis of the thermodynamics since its inception.
In this original context the validity of the laws is unbreakable (except for brief moments).
The long range interaction field, the gravitational one, was absent from the analysis since ever. Without a proper study of this situation no one should take for granted that the laws should apply. Unfortunately there is a widespread belief that the universe must obey to our convictions.
Lets see this simple situation with matter and gravity:
An infinite universe, isotropic and isodense except in two locations. The initial temperature is Zero (0 K).
(In the past I'd insurmountable intellectual problems that ended once I was able to concede that the whole universe can not be ascribed to the size of an atom, or of a tennis ball or inside my head)
Consider a underdense region: ...----------__----------...
You can imagine the universe as a previously immobile lattice of crystal with an atom at each seat. But the atoms that are missing in that region are the ones that, if present, were holding the all universe immobile in place. No more the atoms in the vicinity of that hole will be attracted to that region and the hole starts to grow. A hole will develop bigger and bigger concentrating all the matter in the outer shell of it. The growth of the hole is accelerated (The relevant gravitational equations are originally presented here and here) and the temperature will rise - once again: against the general belief.
The resultant of the growth of the primordial holes are the largest structures of the universe: the VOIDS.
But, by BBT, everybody knows that the universe was hot in the beginning. This is theory - a belief - and the data (voids) allow the opposite interpretation.
An overdense region: ...______/\_______... is condemned to disappear and dissolve in the immense ocean of surrounding matter (once again: against the general belief: gravitational condensation)
It is the immense ocean of surrounding matter that dictates the evolution of the local particulars. IMO the opposite notion is irrational.
The codes of the simulations of the universe evolution are flawed and they can not achieve the gigantic proportions of the voids, as well as their degree of emptiness: They are considering an infinite speed of light; they are not accounting correctly the infinite character of the universe; they are not starting with 0K, they are manipulating the data by injecting theoretical 'dark matter' and 'dark energy'.
note: DM and DE are not observational evidence, they are injected in the theory and in the simulations to fulfill the tremendous misalignment (95%) between the accepted model and the observed data.
Everything I wrote above is also a belief, backed with the equations of the usual gravitational interaction and argumentation on physics. The documents linked in my profile are formal presentations 'against the tide'. Instead of space expansion I explore a 'shrinking atom' and found a model 100% aligned with the data (no DM, no DE, no...) and with 1 parameter: $H_0$.