religious freedom & respect goes both ways
"So France bans the Burka (Actual religious freedom being suppressed)."
If you want your cultural and religious conventions respected, you also have to respect other people's religious and cultural conventions.
In the western world, showing your face is a sign of openness and honesty, covering your face is a sign of concealment and dishonesty. There is a reason why historically outlaws are called hoods, it's because they covered their faces. Covering your face here will engender distrust and suspicion, despite it being "the norm" in other cultures.
While I don't believe the burka should be completely banned, i do think that no concessions should be made towards people who choose to wear one. If you walked into a bank or shop wearing a motorcycle helmet, you would be asked to remove it or leave. Don't expect to be allowed to wear one in places where showing your face is a requirement. Even if this effectively does ban it.
If you are going to ban a tshirt because it is against the "official" religion, fine, no problem with that. But just don't then expect concessions to be made towards you or your religion in secular countries.