Theoretical physics shows "irreducible complexity" arguments invalid.

[Angrboda]

Quantum Entanglement implies complexity is an inherent property of the universe, measured by time. Things get more complex as time goes on (so to speak), therefore "irreducibly complex; i.e. not reducible to the result of natural systems" no longer makes sense according to physics.

Irreducible complexity has always, by definition, appealed to causes that are not currently known, ie. natural causes. To say that natural science rules out irreducible complexity is to argue that only natural causes currently known exist. You're effectively claiming that IC doesn't exist because only natural causes exist, and nothing in your article justifies that conclusion.

So no, quantum entanglement and decoherence do not show "irreducible complexity" arguments invalid.