This is not true. Only half of public school spending comes from local taxes. The other half comes from state funds and offsets the local property tax differences.
Here is the breakdown for Maryland: https://dls.maryland.gov/pubs/prod/NoPblTabPDF/2024PubSchool.... My county, Anne Arundel, received half the state funding of poorer counties. In terms of total funding, it’s below the median, but has above average schools for the state because school quality is more a function of the types of kids in the school moreso than funding.
Here is the breakdown for Maryland: https://dls.maryland.gov/pubs/prod/NoPblTabPDF/2024PubSchool.... My county, Anne Arundel, received half the state funding of poorer counties. In terms of total funding, it’s below the median, but has above average schools for the state because school quality is more a function of the types of kids in the school moreso than funding.