No. If that's happens. The father absolutely should not do that, even if it is because he things they are showing his daughter more supprot. But the bigger story, and the reasons thousands will be there (if true) is that it absolutely should NOT be any schools policy to be promoting some cultures over others and then sending kids away for representing their own culture. This isn't the 1970s now. In many schools white British kids are the minority so fairness is critical
We are a proud multicultural society. It's critical that things like that are pushed back against because it's such policies (and the inevitable reaction from Tommy Robinson etc) that are chipping away at any hope of cohesion. But you have to understand and acknowledge the original issue and the problem with that policy and action.
We should take the schools apology at face value