If you think offering a cloud service is at all the same as offering someone a box in a rack, I invite you to compete in the space.
It's not just "space in a rack and you deal with the servers yourself and you come to fix them if they break".
These companies know what they're doing.
(Also, at Hetzner you can even rent their network hardware if you want to make custom solutions.
In fact, I have no idea why people go for those. You pay a massive premium for the "privilege" of not owning the infrastructure, and being subject to opaque pricing and outages that are completely beyond your control.
And in terms of actually managing the stuff, now you have to pay staff to manage your cloud things too.
It makes no sense to me.
This is pretty heads-to-heads with EC2, in terms of how it works behind the scenes.