Your car example is beyond stupid, hence his comment about you being a dumbass. Nobody in their right mind would be buying a kit that is.....NOT COMPATIBLE with their car.That sounds like something a dumbass would say. Not everyone with an IPhone knows these things, hence why they are in multiple lawsuits currently, all over the world. Only a dumbass would assume everyone should know you can't own a product, despite paying over a thousand.
I'm glad you keep using my car example, because no one in their right mind would be ok with having to spend more money to get something fixed, than being able to do it themselves. Especially if they are a mechanic themself. Imagine not being able to do a simple thing like a oil change, without rendering your vehicle useless by doing an oil change? Imagine being so stupid to actually support this kinda behavior?! Not everyone knows you can't do certain things with their IPhone, but they shouldn't be dumbasses to support this kinda behavior. It's anticonsumer. Anyone supporting this is a tool.
There are other stores you can go to for iphone repairs, not just Apple stores. You really are a tool.