If suburban communities are forced to place their children in schools that are exactly the same as inner city schools, the quality of inner city schools will rise considerably. This will force the rethinking of how education is financed. Currently the states give equal amounts to all districts, depending on enrollment. Then it is up to each district to either live with that amount or find ways to raise sufficient funds to provide the amount of money that is actually needed. In Illinois, and most states, real estate taxes are used to make up for the difference between what the state provides and what is actually needed.
Wealthy districts are able to raise more money than poor districts.
If the Supreme Court finds this unacceptable under the above-mentioned precedents, states would have to find a more equitable way of funding the schools. The answer is not to attempt to discourage districts from funding their own schools. This would lead to a mass revolt. The answer is for the states to tie the amount of state aid for school districts to a basis of need. Districts of lower real estate valuation would simply receive more state aid per pupil.