It's easy to argue this perspective when talking about iPhones, significantly more difficult when talking about appliances like fridges or stoves. People aren't going to say, "oh, fridges are not very repairable, so I'm not going to buy one." They'll buy an unfixable one and then toss it when it breaks.
I’ve never had a hard time getting parts for a fridge or stove repair.
If anything, I think it’s gotten easier and cheaper than before (though it often takes a couple days to arrive rather than being very expensive though in-stock at the local appliance parts store as it was 20 years ago.)