This is a common but false claim. Property tax funding is supplemented by state and federal taxes to compensate disparities:

https://www.heritage.org/education/report/the-myth-racial-di...

on average, both Black and Latinx total per pupil expenditures exceed White total per pupil expenditures by $229.53 and $126.15, respectively [total per-pupil funding is around $14k, so the differences are negligible] - https://journals.sagepub.com/doi/full/10.1177/23328584198724...

And the US spends more than average per pupil - more than Belgium, the Netherlands, Sweden, Germany, Finland, and Japan: https://nces.ed.gov/programs/coe/indicator/cmd