>All of which is only possible because they have had a monopoly.

You got it backwards: them having a monopoly is only possible because it hasn't been possible for anyone else to produce more efficient desktop/laptop CPUs. On the mobile, where there are competent competitors, it's a different story.

It's not as if if they sacrificed their margins they'd magically be able to produce faster processors. Just cheaper ones.

And why would they have "consumer cpu options that ditch the integrated graphics"? What that would accomplish, when there's a ton of cpu being wasted otherwise?