These programs provide challenging material to kids who are more capable while leaving room for teachers to create more appropriate coursework for everyone. Do you think those kids should just nap all day?
Your preferred system seems to be to lower the standards instead of raising everyone up. Interesting, I wonder why.
This is commonly repeated and basically false. Inflation-adjusted funding per student continues to increase: https://nces.ed.gov/programs/digest/d25/tables/dt25_236.55.a...
Please avoid personal attacks, do better.