No, you misunderstand, it's not that we lack the knowledge or skills (we don't!) it's that the backbones and pipelines all converge on these hyperscalers and that's where you get the best throughput and least latency.

I clearly remember having a discussion with a very VERY large company I worked for at the time about getting some NVidia hardware for our own enterprise data centers and they flat out refused. Now, they have lost any advantage they could have had.

The issue with AWS is that they started off cheap, easy, simple and grew into an enterprise mess complete with opaque pricing. That's an issue. The complexity itself has created a whole new lane of work for the SRE where they can specialize in AWS and not do anything else. It's grown beyond just a cloud provider. People who are still expecting a cloud provider are going to be sour about it.