For many, many repairs the Genius bar just tells you that it is not repairable even though it is. A 2000$ device that you just bought a couple of months ago. What right to repair do we have if Apple doesn't offer repair, even if you bought Apple Care.MacBooks are designed to fail, a drop of water kills the machine, the fuses never blow, if a sensor dies the whole machine stops working, they admitted a keyboard design flaw and if you get it replaced they replace it with the exact same one...
If Apple made parts available there wouldn't be a case. If Apple offered repair services like Lenovo there wouldn't be a case. If Apple designed their machines to be serviceable there wouldn't be a case.