I'll say this. You won't find a better English centre back for much less than £50M.
Sure, they could take a risk on someone like Sven Botman or Boubacar Kamara, who would be bargains by comparison, however I am sure Arsenal are wary of another Saliba situation, where the manager doesn't fancy him and some of his "activities" off the pitch have deflated his value. White seems to have a near flawless attitude, speaks perfect English and is already used to the Premier League.
He would be a decent signing for Arsenal in my book. He would certainly be their best centre back if he joined.