√ This theory suggests that electromagnetic radiation can be understood in terms of quantized particles, a fact that has immense experimental support.

You're assuming that the quantized particles are not also waves.

As far as adam, you'll note that smaller waves are much easier to spot in the ocean then really large amplitude waves. The fact that we see Adams behaving his waves could me or not the ways are small enough for us to see them.

> This is a nice idea, but this line of thinking will lead to some very unusual results. The most famous is possibly the "ultraviolet catastrophe" that Planck resolved by developing a theory of quantized states and quanta https://en.wikipedia.org/wiki/Ultraviolet_catastrophe.

Quantization is real. But I've never seen any phenomenon that can only be explained in terms of the full concept of a particle (which is a decidedly nonrigorous one in any case), and while the concept of a quantized wave is certainly counterintuitive, I'd argue it's simpler and more consistent than wave-particle duality.