It is not a democracy game, it is a faction game. Anytime is not a valid argument, most societies do rule-changes at fixed intervals, at least the civilized ones. I think we should more emulate a Nation State, than a hippie collective, to be honest. Rules are there for predictability for the committed players, not just a random place people can walk in and rewrite the rules the next day. People can of course write proposals for rule changes, but changing metagame rules on a continuous basis would ruin the game for many of us.
We should respect new players views when a term has run its course and the next elections done with, not rewrite the groundrules before they have been tried at least once. There is too much work on rules already, no need to add more.