"I think Apple should open source macOS so it can be decoupled from their hardware, or just start cloning it in open source against their wishes as was done to Windows."
Why on earth would Apple want to remove one of their biggest competitive advantages?
"Otherwise it's time we let macOS go because Apple plans for it to run iOS apps and to use their iOS processors in their computers, so we and our tools and software are approaching obsolete and when iOS devices can compile apps we will start being redundant too."
Citation Needed. They have a toolkit that will allow iOS apps to be recompiled to macOS apps. That's about it.
"Even if they released new hardware for us tomorrow it would be coupled with iOS processors and how many generations of having both processors can we really expect?"
Why on earth would Apple want to remove one of their biggest competitive advantages?
"Otherwise it's time we let macOS go because Apple plans for it to run iOS apps and to use their iOS processors in their computers, so we and our tools and software are approaching obsolete and when iOS devices can compile apps we will start being redundant too."
Citation Needed. They have a toolkit that will allow iOS apps to be recompiled to macOS apps. That's about it.
"Even if they released new hardware for us tomorrow it would be coupled with iOS processors and how many generations of having both processors can we really expect?"
What the hell is an "iOS processor"?