You know, Iceheart was right...

[TinyRedLeaf]

...as she basically strawmans her own argument. We're not pawns of a higher power.

That's not a strawman argument; more like a bleaker, more cynical interpretation of service. We may be "free-willed" individuals in that Hydaelyn did not temper us the way primals do (a point that some would dispute), but we did choose to answer her call and serve the cause of "light".

Iceheart chose to see that service as servitude instead. There's only a fine line between the two. She has seen things that we have not, so it's too early, I think, to dismiss her as a lunatic.

...it's pretty easy to lose heart...

It is indeed. One of Minfilia's major objectives is to restore a sense of balance and harmony but, as we've seen, a right balance is not easy to achieve in Eorzea, as in real-life.

Gridania's wish to maintain the sanctity of its woods can become a stifling orthodoxy that breeds racism and bigotry. Ul'dah's politics may disgust many but, at the same time, it comes from a work ethic that emphasises self-reliance, and the belief that the greatest rewards should go to the most deserving. Limsa Lominsa's expansion is necessary to ensure that former pirates and rogues can be gainfully employed, but it's also robbing weaker neighbours of their livelihoods.

Why can't we just get along? Because, ultimately, it's never easy to balance self-interest with the needs of the greater good.

Ramuh thus isn't entirely wrong to blame mankind for the ills of the world.