There are a few ways of looking at the discussion in this thread.

If you were simply upset about the decline and fall of the Amaurotine civilization and wanted to let those feelings out, by all means, although there are other forms of media that lend itself better to such a format than a discussion forum.

If your central thesis was simply that Venat is a 'polarizing' character, then that depends on context. Any topic can be 'polarizing' given the correct audience. It's a bit of a passive word, though, that passes responsibility to the subject matter instead of the person reacting to it. You can always choose to not get into arguments on the internet. I would say that Venat, Emet, Elidibus, and even Hermes are all polarizing figures, simply because we have only partial explanations about what happened, and those lorebuilding gaps still remain unfilled. That's neither a good or bad thing.

If you want to discuss the 'morality' around the Amaurotines' actions, you also have to be upfront about what perspective you are actually evaluating them against. Emet Selch was a mass-murderer who destroyed seven populated worlds and destroyed human civilizations on the source multiple times over. He thought that his fellow humans on the planet were inferior to him and not truly alive. He abandoned an ally in a locked-in state for 100 years because they were expendable. Elidibus tried to use chemical weaponry to slaughter an entire continent of both his own footsoldiers and enemies alike, and was rebuked by Zenos of all people for it. Lahabrea murdered his wife in private, concealed it from the Convocation, and buried the evidence around her experimentation even well after the destruction of his society. Mitron forcibly merged his soul with Gaia's against her will to try to force her to love him, and tried to destroy the First to create a utopia where only the two of them would co-exist. And then there's Fandaniel and his desire to just destroy everything. This is just the leadership of Amaurot. I'm not at all surprised that Azem just packed up and left.

That being said, the Amaurotines were alive under different circumstances, and just had different perspectives than we would have as a result. The entire star revolved around Amaurot. At the time of Elpis, the Convocation ruled over Etheirys as a whole, being neither elected nor having any form of oversight. These were the most powerful individuals on the planet, at a time when society was capable of making and unmaking entire species at a whim. Absolute power corrupts absolutely. They were a group of Godlings playing games over the fate of the planet across the past twelve thousand years, and most of them just lacked the insight into the suffering that they casually wrought upon millions. How could they know? Why would they reflect? It's also the reason why Emet's finale ends up being a hearty 'well played, no hard feelings'. These elaborate games over the fates of multiple worlds are another day in the life of the Convocation. This is what they do. The only thing that was missing was a cutscene of him and Venat playing chess in the Rift with glass pieces.

Either way, I don't think that there's any universal moral high ground to be had here, simply short of a conscious decision to not repeat the mistakes of our predecessors, as we cross over to that next horizon.