So you’ve vaguely waved your hands in the direction of innovations that you think are different now than in the 1970s but not explained how they’re different or where those innovations came from.
You aren’t actually pointing to any serious innovations silicon valley have done.
Modern device development consists of more than gluing a bunch of APIs together, but it largely does consist of that.
Apple maintains those things not for innovation purposes, but so they can keep a walled garden. If they maintain objective C and iOS and MacOS on their own terms then they can keep people locked into their ecosystem and overcharge them for devices they will then overcharge for repairs in order to upsell people into the next model. They are notorious for this shitty behaviour. It’s not real innovation.
And when you say wireless is straight up black magic… you mean it’s a real technology that was developed by researchers, not capitalists, because real R&D is expensive, so capitalism socialises the costs and privatises the rewards.