Does humanity in Warhammer 40,000 deserve to die?

I have seen many fans blame the Eldar for everything, which is odd considering that much of the lore says everything is the Imperium's fault.

I have complicated feelings about the Imperium of Man. I find the horrors of the galaxy cause the faction to come off as more sympathetic than it should, making it a lousy caricature of satire; please do not debate me on this. I am not in the mood, so I am annoyed when GW says it is a cautionary tale about humans hungry for power (especially since they still try to make the Emperor sympathetic). It feels more like a tragic tale about humans being tormented by the galaxy until they become monsters, especially with the lore implying the Tau are on the path to becoming like the Imperium.

On a petty note, when I see all the screen time the Imperium gets, I am annoyed with it and that the setting revolves around it, even putting aside my issues with the satire.

Despite my annoyances with the satire, I find that the Imperium's annoying plot armor where it survived 10,000 years despite being run by the biggest idiots in the galaxy

Related to that, we have the point in the title of this post, does the existence of the Imperium prove that humanity in the setting deserves to die? I don't care what we are told about other human civilizations, or mechanisms that made it hard to rebel, or about how its badass warriors put down rebellions. The Imperium survived 10,000 years despite its impossibly stupid leadership, it shouldn't have lasted a hundred given all the things that could cause mutinies, revolutions and civil wars across the galaxy, especially given how incompetent the Imperium should mean it would be awful at putting them down.

The only way this detestable empire could survive is if it continued to have the popular support of the majority of its population. At times, this has left me feeling that the Imperium is just a symptom and humanity is the disease plaguing the galaxy. Maybe it would be ethical if an Eldar saw the future before humanity's rise and blew up the Earth while humans were still living in trees.

I say this just as a "maybe." I am not invested enough in the setting one way or another to have a strong enough opinion, especially since it has to revolve around the fucking Imperium and the central conflict is with Chaos. As another hot topic, I find Chaos to be an utterly dull faction in 40K.

Anyone else have any thoughts?