So you're basically saying "I don't have any proof of any of this, but I'm scared so I'm scaring others as well".
Your first point makes zero sense: it can't be both "for profit" and have "no means of generating income".
Their way of generating income is the reason they created the distro/OS in the first place: selling hardware. To my knowledge, they wanted to ship their mini servers (ZimaBoard) and later NAS-like devices (ZimaCube I think?) with an easy to use OS that can do all basic home server tasks. That didn't exist, so they made one. They didn't need to make money from the OS, it's a catalyst to bring able to sell (more) hardware. I personally think that is a great way to use Linux as a company and contribute to the wider ecosystem, why does it scare you so much? They could've closed this of much more, but made it for available to everyone, on any hardware.
From what I heard, they did achieve their design goals. It's a bit simplistic for me personally, but probably great for a beginner.
I get that enshittyfication is everywhere these days, but maybe don't try to stop people from using things that haven't actually seen ANY yet, just because they might? With no indication that they will, either.
4&5 might be fair points though, I for know enough about the details.
Your first point makes zero sense: it can’t be both “for profit” and have “no means of generating income”.
Are you for real? The entire concept of Enshittification hinges on the real fact that most internet services start out with a net negative "profit" and are kept alive through large injections of VC capital. This allows them to offer the service for free or close to free to gain a massive user base, which they then leverage for profit later on through measures that make the service worse for consumers. The entire reason Mastodon, Lemmy, and the federated social network exist is because of this contradiction.
It also isn't an operating system. It's an application that you install on an existing OS.
Could the company decide to lock it to only their hardware? Probably. Could they take money in exchange for preferred listings? Yup.
And if it gets shitty, like OP said, it is just a layer on top of Docker. You can leave it.
CasaOS was key in easing me into the world of Docker. I understand general use enough to be comfortable installing without Casa and jumping into compose files and such. But I'll still check out the store for apps sometimes just for ease of use.
Whole post is just a rant against something that OP apparently doesn't know anything about.