Of course. But that pie in the sky, "we're so much more evolved" BS isn't that realistic in just 400 years.
As a species, we will be more evolved by then, but not above self-preservation, which has been in our genes for millions of years.
Sisko isn't acting much differently than anyone who just wants to save the lives of his family and friends, along with millions of others, on both sides.
I think the real key that’s missed here and with DS9 in general is that The Federation was facing, besides the Borg, it’s greatest ever existential threat.
We see Weyoun outright state that he wanted to wipe out the population of Earth, that was the level of the dominions resolve to win the war and hold control over the Federation (and just as a brand new thought, the Klingons would have wiped out as well as they would have never surrendered).
And the thing is we actually see them do it, with a single word they begin exterminating the entire Cardassian population with the only point of contention being how long it may take.
With all that in mind, even with Humanities evolved sense of right and wrong, DS9 asks the question well, if we come up against someone who doesn’t play as nicely and is determined to wipe our every man women and child on our home planet, what are you gonna do?
A lot of people see it as an affront to Genes vision and I can certainly understand that viewpoint, but with that in mind, this is one of the reasons I think DS9 is the best Trek of them all, it what I’m about to say isn’t a poo poo on every other Trek.
But it makes clear that unfortunately we may still run into situations we can’t always solve peacefully, but still doesn’t go quite as far as the ugly, more resembling our own universe that The Picard Series does.
That’s just my take.