2. Rebble: Make every database be easy to export as JSON or similar
3. All: Let everyone do what they want
4. Core Devices: Make it easy for devices to point at Core Devices or Rebble services and firmware updates as they like
Could not come up with 6 more steps.
Fighting those with (perceived or real) intention to profit from community work is a waste of energy that can be better spent serving that community.
Best to focus on making people want to run the open source alternatives over any proprietary first party solutions that may or may not emerge.