If your definition of freedom of speech means being able to name your kid whatever you want then obviously the US first amendment is not working since most states have rules regarding naming too. For example: https://www.theguardian.com/us-news/2015/apr/11/california-b...
California like several other states bans the use of diacritical marks on official documents. Last year, the state took up a bill that would have allowed diacritical marks, but it stalled out when a $10m price tag was attached
