I'm gonna stick to pre-owned devices with alternate ROMs like Lineage, Cyanogen, RR, Havoc, Bliss, cr, Viper, AOSP, KP, ISP, etc. or any of the other hundred brews. I don't anticipate getting a phone that runs android and is not able to be modified EVER. Eventually if the time comes that the tech changed so vastly that they're not usable anymore (like 3G now) by then hopefully there will be full Linux phones or some other varieties. Maybe many.
But the thing is the mainstream masses just don't give a shit. Their rights and liberties have been getting chewed away at for decades and they just can't seem to care. As long as they are entertained enough and the culture like ours - ie geek subculture / hacking community continues to be mocked and vilified, they're certainly not gonna listen to us.
But what's new about that? Nada.
We are forever going to remain a fringe community and I just accept that. When a family member has Alexa devices and I show them all the analytics and tests and records from all the various sources that provide empirical evidence of constant surveillance and spying and uploading of eavesdropped audio and the folks just go eh oh well eh yeah but ah useful eh I have nothing to hide ehhh urrrgh .. I start to see them with sunken eye sockets and protruding brow ridges. They are the fools and the suckers and the sheep. They're the ones who will line up to be implanted with a chip, they're the ones who will pay to have their brains mapped and catalogued. You can't cure fucking stupid. Meanwhile people like us will remain the fringe "undesirables" as long as our hearts beat.