Except the vs stuff I mentioned weren't supposed to have a clear answer.
Coooperation means you're collectively stronger, when when cut off from others you're weaker. Is it better to stand strong and independent on your own without needing the help of others? That was kind of the Renegade thing in ME1. Not (necessarily) "Evil for the Lulz"
breaking the cycles: Yeah, regardless of your choice. Only to set up potential new cycles. Everyone you choose to synthesize or is now under the thumb of the Shepalyst, or the synthetics you slaughter sure didn't get to forge their own destinies.
Complacency vs forging ahead: there are supposed to be dangers to that. Compare the Council (complacent) vs Cerberus (forging ahead) Again, there are supposed to be good and bad mixed in these things.
But ME3 stopped asking questions and simply started reciting answers. "This is good" "This is bad" It stopped giving us questions to think about and instead just told us what to think. And if we disagreed, we were just "confused"
Standing independently was never a viable option. Even in ME1 you had to recruit aliens and without their help you would've never succeeded. Then comes the Dirty Dozen of ME2 which is the epitome of "we need to stand together". ME3 simply continued with this.
That's your perception. The endings do not hint on possible new cycles (except, maybe, Renegade Control which is more from "you get what you asked for" department). And the games were never about other races forging their own destiny. They were about Shepard doing it. Curing the genophage, peace on Rannoch, destroy/rewrite heretics - Shepard makes the decision on those issues, not the races themselves. The endings are no different.
Council. Complacent. Not indoctrinated. Wasted time for preparation. Cerberus. Forging ahead. Indoctrinated. Found a way to control Reaper troops. Both paths get results. Forging ahead is more dangerous but more rewarding.
ME3 was supposed to give answers, not ask new questions. It was the end of the trilogy, the final chapter. Yet even considering that, we still argue whether to cure or sabotage the genophage, whether to destroy or save the geth, what ending to choose... There are more than enough questions.