The best way to help is to figure out how to teach kids to read, and to expand their vocabulary, before kindergarten. Pre-K is where the answers are: that’s when the brain is most plastic.
You can't, there is no way to reverse this. The best thing to do is earn as little as one can, so as not to fund your destruction, and to get as far as you can from cities.
Outside of voting for local and federal officials who actually want to solve this, how can I help?