As for the third one, I'm not sure what your point is. The specific article only speaks of a heatmap of doorbells. The article also states the the precise location of the doorbell isn't even given, let alone footage.
I don't think anyone considers that data to be anywhere equal to giving access to video feed. You can simply drive down the road and see which houses have a Ring doorbell, or probably even detect them sniffing packets.
Buying less "on the cloud by default" devices and using encryption.
Your latter point doesn't really make sense. I'm fairly sure all of these devices use encryption to the cloud, it's just that the NSA has access to the unencrypted data on the cloud itself, theoretically. Unless you mean storing your own encrypted data on the cloud, which again goes back to the point above.
Actually, we know that a large portion of data obtained by the NSA can be shared with law enforcement[1]. We also know the NSA isn't exactly upfront about how much they collect and that they can basically collect what they wish without reprocusions[2]. We also know that Ring has given access to police and partnered with 630+ departments[3] directly.
Not even close to "plain and simple FUD", as most things it's a bit more nuanced.
[1] https://www.nytimes.com/2017/01/12/us/politics/nsa-gets-more...
[2] https://www.pbs.org/video/frontline-united-states-secrets-pa...
[3] https://www.cnet.com/news/ring-gave-police-a-street-level-vi...