As someone who has had this opinion "Sisko is a war criminal who destroyed a planet's biosphere"
I encourage you to rewatch the episode.
the "refugees" are terrorists who developed the bomb Sisko used, he just returned it from cardassian DNA to human DNA
this is not about a personal vendetta, this is about the treaty with cardassia that will save lives.
These terrorists are jeopardizing peace just because they aren't willing to relocate, not because they have a spiritual connection with the land ("TNG:Journey's End") but because they "Already built a home here" .
The settlers Picard was going to remove by force actually joined the cardassians because they didn't want to leave, but the Maqius are so racist they were willing to use said weapon to make the planet uninhabitable to cardassians
on racism: Eddington says "the Maqius are not killers" after blowing up a cardassian vessel.
yes they did have a vendetta but Sisko played that aspect of this conflict so Eddington would turn himself in.
It's not confirmed in the show or anything, but I doubt the Maqius were only going to use that weapon defensively.
You're correct objectively, however I think one of the things people (myself included) like about Sisko is that he's flawed. He's (imo) the most complex and developed captain and does let his emotions cloud his judgement from time to time but always means well. While Picard is my #2 fave, he's more an ideal that casts such a massive shadow that nobody can live up to him. Picard perfectly encapsulates humanities ideals, whereas Sisko portays how flawed humanity truly is.
As a Captain Picard admirer coming from TNG, I have always held these things against Sisko just as you do. I´d go as far as saying that SIsko is a war criminal. That does not mean I don´t like DS9 though - on the contrary.
I'm a normies with Star Trek but I remember watching with a homie a thing with Sisko saying he was a war criminal and hoped that people could learn from him.
Tuvix was an accident and should have never existed in the first place while Tuvok and Neelix were real people. Janeway made a hard choice and then did the right thing by correcting the accident.
Sisko is my favorite. I don't think it was going off the deep end as much as using the same strategy the US used by nuking Japan. Japan had no chance at that point and continuing conventional war would have been more costly in terms of lives lost and property damage. Using nukes crushed any hope they had of continuing the war and have their prideful government an out that preserves their ego.
In DS9, it sent the message that the federation is can and will annihilate the dominion to defend themselves and the god complex of the changelings was pure delusion.
I don't like the phrase "no excuse". I'm a particularist. E.g. There is no excuse for shooting someone. Shooting a person actively shooting up an elementary school is fine in my book.
I'm in the middle of my DS9 rewatch and totally forgot about the stark difference between Sisko hair and Sisko bald. I just watched the Homefront/Paradise Lost episodes and the episode where Eddington defects to the Maquis and watching Sisko go all badass and lose his shit was fantastic.
Much as I like Avery Brooks, he never got a handle on the Sisko character until he shaved and went back to being Hawk but with a son. They should have let him do that from the beginning.