Nothing is perfect and nothing is permanent.
If you are extremely motivated to have an account that can never be pulled out from under you, you must run your own instance.
In the fediverse, its plausible to do this and still be connected to others. There are.lots of single user instances. There were some small businesses opening where you could pay someone else to do the admin work for you if you are disinclined to that kind of geekery yourself.
If there's $10 left over one admin can buy 2 slices of pizza and a can of pop in payment for 1000s hours of free labor.