Of course, and I'm not saying that. Coordinated action is so stupidly effective that it barely even matters what you do, and long as you all do it together.
That doesn't mean it's possible for every problem. There's always a coordination cost. The larger your per-person cost times the number of people you need, the more unlikely the coordinated action is to happen. Spontaneous coordination is an oxymoron and improbable by definition. It's a situation where the system doesn't do what's energetically favored and instead does something else that isn't.
Ascribing agency to systems is a human bias. Ascribing it to groups of agents is both human nature and the fallacy of composition. Blaming individuals instead of looking at the system and the context is both human nature and the fundamental attribution error. This is one of many places where the bucket leaks.
Currently some groups with low coordination costs (and so high leverage) are coordinating to increase coordination costs for the groups that oppose them, using tactics that are independently high-leverage, multiplying their effect so much that they can make the opposition's costs effectively unbounded. Human nature makes the opposition wilfully, aggressively deny this and insist their costs are low and people are just bad and lazy. (Somehow, everybody being bad and lazy all at once does not reflect on human nature.)
The argument about coordination costs is more or less uncontroversial when projected into any other subject. It's only controversial here because of human nature. It's another leak.
Your opposition's agency is concentrated and yours is dilute. Human nature tilts the playing field, diluting yours and concentrating theirs. Accept this and adjust your strategy, or lose.
Your initial comment does literally say that collective action against individual interests has never happened. You might not have meant that, but that is the explicit implication of your bucket example "always get[ting] the same result".
But it seems you actually agree with my initial statement? Or what are you arguing against? Because in my mind, altering our social and political systems is the only way to adjust our strategy.