I have nothing against polyamory. But it takes all people involved being okay with polyamory. And there will always be people who aren't.
It's still a matter of social morality. If the setting is set for a pair / monogamous marriage, then the majority will be brought up in such a spirit that they will consider monogamy to be the most suitable for themselves (like me). While under the dominance of polyamory, the majority will choose polyamory. At the same time, there is a nuance - the forms of marriage are still tied primarily to microeconomics and so on, and the marriage union is, after all, primarily a certain economy and property. That is, if humanity is organized in the form of polyamorous communities, then these will not necessarily be sexual unions. Within them, monogamous couples can exist - that is, they enter into an intimate relationship purely with each other, but maintain platonic relationships with others and participate in the social life of the community (say, take care of young children together, or jointly organize leisure).
But not non-existent. And on the global scale, the amount will be significant to the point of potential total disruption even with a much lower percentage.
There is a critical mass of assholitude that, once passed, becomes invariably more disruptive than just the sum of its parts.
Firstly, the skirmishes on this ground in non-proprietary societies are much less serious, and secondly, it will already be progress if we reduce them to a minimum (both in size and scope).
Yeah good luck organizing your communal stores and allocating resources without a bunch of people tracking those things. Bureaucracy hate is indeed, the worst. It's the engine that makes civilization run. But they're under the hood so people only notice it when its chugging and belching smoke.
Because it smokes all the time - if it is not avoided, then how will you deal with the Peter Principle, with bloat in numbers and an increase in unnecessary work (that is, more people do unnecessary work), and the growth of corruption with the growth of bureaucrats?
So no, I still do not agree to anything less than the election and turnover of all officials. As well as the right to hate the parasitic caste.