It does appear that they are -- at least, I'm seeing them with increasing frequency. I'll be getting one myself once my current smartphone dies.
> I personally can't see myself ever choosing to get a phone with a bad digital camera.
That's fair, but not everyone has the same need. Personally, I would be perfectly fine with a phone that had no camera whatsoever. I almost never use the cameras on my smartphone anyway.
I had alot of fun figuring out how to transcode movies & netflix shows for it, as well as writing J2ME apps. If there was a modern J2ME feature phone with 4G I'd probably use that. Who needs more than 100Mhz on a mobile device, honestly?
https://www.nokia.com/phones/en_int/nokia-6300-4g?sku=16LIOW...
If you have a Mac, you can access all of these on your mac. If you have any other desktop computer I believe you can still use any except FaceTime and iMessage.
A friend of mine has a dumb phone but is still a part of group chats via his computer.
Unless you install the Whatsapp .apk on a desktop (ChromeOS?) I don't think you can easily use Whatsapp without a smartphone