Europe Upholds Nazi Anti-Homeschooling Law

From the always valuable Brussels Journal comes the story of German families forced to flee from a Nazi era law against Homeschooling. When the case was appealed to the European Court of Human Rights they predictably ruled...

The right to education as enshrined in Article 2 of Protocol 1by its very nature calls for regulation by the State.

The full text of the ruling is here. My favorite part is this...

The [German] Federal Constitutional Court stressed the general interest of society to avoid the emergence of parallel societies based on separate philosophical convictions and the importance of integrating minorities into society

Parallel societies. Do they mean like this?