Just one or two points:

It's been a LONG time since I've had thermodynamics, but either the second or third law states that the complexity of a system does not increase without outside intervention.

Macroevolution postulates that over the years oraganisms climbed the ladder to more and more complex organisms randomly.

It would be likened to a refrigerator which pumps heat from a colder environment to a warmer one, without work/ or design from an outside system. Would anyone believe in that?