Carson case is tough based on initial reading. Maine already was saying they would pay for you to go to a private school if you have no school in your district, it would be hard to exclude religious schools from that if you already allow private schools. Maine fucked this up because they were ok with public assistance to private schools so they opened the door.
How can you say taxpayer funding can go to fun private schools but not private religious schools simply because they are religious. Religious schools must meet state education requirements just like private schools do. If you are already going to fund the choice in this specific fact set it seems arbitrary to decline religious schools that have to meet the same state requirements.
The problem with this case is fucktards never read the case and make the case into an issue that has nothing to do with the fact pattern. The court is not saying taxpayer money should go to religious schools and we are tearing down separation of church and state. the court said if Maine has a program to fund tuition to private schools you cannot exclude religious schools simply because they are religious even if they meet state education requirements.
Maine opened the door, once you do that you cannot be arbitrary and exclusioanry.