the only way to ensure total future freedom of action is to make sure nothing ever happens, thus maximizing the number of available futures without ever actually choosing one.

That doesn't make sense -- why would the status quo, whatever it is, always maximize the number of available futures? Choosing a future does not restrict you, it does close some avenues but also opens other ones.

"Total freedom" is a silly concept, of course, but it's just as silly as "Total <anything>".