No. The REAL issue is how you can't understand that the hair issue is JUST AS important as the guns. In both cases - it's an issue of fundamental human rights.

When the rules of the school enforce a western look on all kids, that is fundamentally undiginified, racist and harmful to the pupils of other races. Pupils whose hair are not naturally straight. Whose cultural expression  of 'neat and tidy' bear no resemblance to ours.
In one sense you are correct - hair is inconsequential to the education process - but this only makes the children MORE right about this, BECAUSE It's inconsequential to the education process - there is no legitimate reason for schools to have hair rules at all. They exist PURELY as social rules - which cannot apply cross-culturally without causing real and lasting harm to somebody. 

30 years ago, my own atypical hair led to daily beatings in school (it was still legal then). I thought they were evil and stupid then. I was right. Yet the stupid lives on.