Plus the average user doesn't care about data sovereignty, what they care about is UX and dopamine.
How many users you know of that are concerned with data collection by big tech? How much does that account for percent wise?
In my opinion users won't choose a future where sovereignity matters. It is a future forced upon them, because they will simply pick whatever methods are still available for communicating.
We used to see this only in a few edge countries like NK and Cuba. Now it is becoming the norm on Russia, Iran, China, Japan and more recently even Europe if you follow the most recent developments. What was once an open garden is becoming quite fenced.