There's one that I know of, but as usual, less developed. Still, probably worth checking out: https://mycroft.ai/

I actually quite like the name of that!

Will not happen until it doesn't have to compete with a free, paid-for-by-spying option. So only if a law's passed outlawing massive, intrusive data collection.

Which will never happen because the government loves the control its surveillance buddies, Microsoft, Google, Amazon, and Apple provide. And the people will keep voting for the politicians who will "protect them" from "threats" like terrorism and drugs.

But at this point, it would be either A) limited in function, B) prohibitively expensive or C) too technically complex since you can't mine the data for advertising money.

The same goes for the Whatsapp dilemma.