if somebody chooses (!) to wear them for religious

Not how totalitarianism works. How many Germains chose to be nazis un the 1930s? How many Russians chose to be communists in the 1950s? Totalitarian is a force that negates individual choice with a set of rules, anathemas and violence, with the ultimate objectve of a uniform society where everybody adheres to the exact same ideology. Burkinis are one of the tools used to enforce said ideology.