Materialism Can't Account for Immaterial Universal Laws Like Math and Logic

Materialism posits that nothing exists beyond the physical. Things like logic and math do not exist in actuality according to this understanding, for they are merely mental conceptions of our neurological chemical brain signals. If this is so, how can the material world be said to exist if we only know of the material would through our senses and experiences that are based on our neurological chemical brain signals? This is the problem with materialism.

Courtesy of The Matrix and TreasureChrist.
https://youtu.be/ZJIPD_9neQw