Morals are metaphysical. Ideas are metaphysical. Concepts are metaphysical. Words have meanings....& meanings are metaphysical. You can’t touch, taste, smell, see, or hear the meaning of a word or an idea. Basically, “materialism” is the idea that there are no such thing as ideas—which is a logically contradiction, similar as saying “It is true that there is no such thing as truth”. Things have “value”. VALUE also is metaphysical. That’s liberals’ biggest problem and why Al Gore screwed up his Biblical quote about the heart & what it treasures. And why Democrats think that the more valuable something is, the cheaper it should be for consumers to buy, ie trickle-down stupidity.
Materialism assumes that reality is defined by the empirical, yet there is no basis in logic or reason for such an assumption. This a major contradiction for a worldview which prides itself on its reliance on "reason" as the ultimate arbiter.
Basically, “materialism” is the idea that there are no such thing as ideas
<><><<><
Philosophical materialism suggests no such thing. It is an absurd position you have staked out with that statement.
The philosophical materialist would state that an idea is a mental process and mental processes physically exist in the brain.
You may disagree vehemently with the position, but it makes no sense to completely misstate the position they do take.