Developers normally do pick the parts that come on a house when they build it.

I understand arguments for repairability, and in most cases, I agree with them. But these things aren't boolean situations where things are either repairable or they are not. There's a lot of nuance in how things are designed and how repairable they are as an inherent part of that design. Ultimately, I agree that artificial lock-in for no reason other than that lock-in is a bad thing for consumers. But not everything is really that simple.

> Historically, people have been able to repair everything they owned.

It all depends on how you define "able". Most people lack technical ability to repair most things for thousands of years. And most things that you own today you are permitted to repair to the best of your ability.