system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: If a country seeks to have an effective, equitable k-12 education system, it should discourage private schools.

Countries that have the best education systems overall put all government educational funds and resources into public schools. They tend to have very low participation in private schools at the k-12 level (primary and secondary school). Here we can look to Finland as an example which tends to have the best education system by any measure but has almost no private schools. 

Any actions a country takes to encourage private schools, undermines public education. 

The effect of private schools will always be to create inequality amongst its citizens. Therefore private schools should only be encouraged, subsidized or funded in any way when inequality amongst citizens is the goal.
gpt
You have your cause and effect backwards: Finland's great public education system *caused* people to abandon private schools, not the other way around. Governments should try to make private schools unnecessary instead of removing them by force.