> I don't see a reason to complain about Apple not making bikes. I mean... they don't have to, do they?

This analogy is really tortured. Apple doesn't make bikes.

But they do make software, and hardware. People want to use them however they choose.

This is more like a bike company choosing a proprietary air valve that only lets you inflate your bike tires with their own company-branded air pump, even though there's been other air pumps for many decades before them, and their design isn't particularly better than the others. And you say "well they don't have to design an air valve adapter to use other air pumps" and -- yeah, that's true. But people are gonna bitch.