It seems to me that conflict of this type arises when people are forced to make difficult choices between similar options with real but minor differences which

It seems to me that conflict of this type arises when people are forced to make difficult choices between similar options with real but minor differences which have a large switching cost. Hence Nikon vs. Canon and Android vs. iOS. And of course religion. The conflict doesn't arise when switching cost is low or the differences are too minor (e.g. Sony TV vs. Panasonic TV, Verizon vs. AT&T, Unitarianism vs. Baha'i fail to generate rancor on both counts). The conflict would appear to arise from people struggling with cognitive dissonance. In other words, if an iOS or Android user were supremely confident of the superiority and perfection of their chosen platform there would be no dissonance and and no outward invective. Just as Freud (correctly, for once) observed that the most passionately homophobic individuals were often in denial of their own urges, the most fervent boosters of a platform are probably plagued with doubts about it.