First of all, we all need to define what "Arabization" is.
"Arabization" to some might mean Arab culture (dressing, lingual 'changes') for society, to others it might mean Arabi "Salafism" (radicalization); to others, it might mean promoting the importance of religious scripture of the Quran on a personal level etc.
a) Does promoting religious scripture of the Quran, & giving it a preference over other religious texts hurt Pakistani society in any way?
b) Does promoting Arab culture (in terms of dressing, like the Niqab; lingual 'changes', such as going from Khuda Hafez to "Allah" Hafiz) for the society, in any way compromise one's personal ethnic heritage, & is it wrong if it does hinder it, considering how societies evolve? Does it hurt society in any way?
c) Does promoting Salafi Jihadism/Wahabism like Zia ul Haq did compromise Pakistani society?
These are all complicated questions (besides the third/last one) that have no easy answers, that need a bit of clarification on one's end.