So the companies that support MCX and don't support Apple Pay are ones where I would never consider shopping anyway.
Walmart, is that a joke? Why would anyone with a decent self esteem shop in a store where they pay so little that employees need to apply for food stamps. There are much bigger reasons why you shouldn't shop at Walmart, and the fewer people that do the better. This just helps in that process.
Now tell me again, where is your iPhone made for $4 labor per phone?