The basics of music theory are presented as though they are the foundations upon which all subsequent music is derived. In fact, teaching scales and chords is like teaching that the electron orbits the nucleus - a 'simplification'. There _are_ real psychoacoustic truths, alongside equally fascinating historical forces, that underpin music theory.
Learn the language and idioms of music theory, by all means, but don't think of it as being in any way true. Its a syncretist cargo cult of hacks and rules of thumb handed down by centuries of men with dubious motives.
I recommend Adam Neely on YouTube, he illustrates music theory concepts clearly, engagingly, and with an appropriate skepticism for received wisdom.
Here's his discussion of some more political criticisms of music theory: https://youtu.be/Kr3quGh7pJA
I recommend Sethares' _Tuning, Timbre, Spectrum, Scale_ to anyone interested in the underpinnings of why some notes sound good together and others don't.
[2]https://www.researchgate.net/publication/287019948_Tuning_ti...