This post from John Gruber really hits the key problem with macOS becoming more locked down and even (sometimes) dumbed down, and the balance between the Mac and iPad in Apple’s product line:

But at a certain point, a hammer needs to hammer whatever it strikes, and sometimes, alas, that’s the user’s thumb. That’s the Mac. It’s a Unix workstation that’s friendly enough to be used by the mass market. It is not an appliance intended to prevent any possible malware or scamware from running.

Apple says they don’t want macOS and iPadOS to converge, but it often feels like we’re inching that way.