The problem with humanity is:
1. we're unable to create long-term solutions. Especially democracy is critical of it. We have to please the will of the people, most of them being racist and sexist for sure. We can't do anything, because after four years, all have to be re-elected again, so they have to be popular and follow the will of the people, even if that is the wrong thing to do. Part of why we still haven't done anything towards climate change or our terrible environmental policies, is because a sizeable portion of the people don't want it, because they believe environmentalism is part of the deep state, or part of cultural marxists imposing their ideology on others. We can't do things that will benefit us on the long term, because short-term benefit is always prioritized because THEY HAVE TO BE RE-ELECTED. Short-term benefit for economy will matter more than long-term benefits, even if it will lead to the demise of this planet (which is a long foregone conclusion, and perhaps for the best).
2. Secondly, we lack perspective. We always think our way of thinking is best, depending on the bubble you've live in. Mostly it's a western infused left-way or right-wing kind of thinking, regardless of it being a right-wing populist, liberal centrist, traditionalist, conservative, socialist or communist. It doesn't matter, because we all live in our bubble, and human brains aren't being made to look from things at a distance, and see things through a different lens.
It's similar to how eyes are made. We are a predator. Some animals are herbivores. They have eyes that can see differently, so they have a wider vision but a less focused one. We have a smaller vision but a more focused one. Obviously we don't see what is happening on our sides, of from behind us. Different example: we aren't able to see carbondioxide, yet it is there. We can only measure it is there, but we can not taste, feel, hear, smell or see it. If we haven't our scientific methods, it just wouldn't be there, while it is there. Our senses trick us into thinking something isn't there while it is there and vice versa.
So does our brain work. We only reason what we want to reason. We only want to know what we want to know. And that happens unconsciously. Our brain will filter it. Our brain filters what is relevant to us to survive from what is not relevant. Your way of thinking reminds me of that again.
The most open-minded people are still at the end extremely close-minded if we look at things from a galactic perspective, and it influences our systems, our morals, our ethics and our way of thinking, and eventually this is what will lead to our downfall, according to the
https://en.wikipedia.org/wiki/Doomsday_argument, which is simple statistics, because you have to realize... why are they no aliens or extraterrestrial civilizations. Didn't they colonize our galaxy (that's 1), and secondly, why am i born now if humanity is destined to reach for the stars and beyond. Why do i not live in a few million years, but why am i some kind of pioneer? Perhaps it is because there is no future, so by simple chance i'm not a unique pioneer that lives among the first 0,01% of humans that will ever set foot in this galaxy, but more of someone who perhaps as someone who is part of a short-lived human spike in population (and be in the middle of it). A flash of intellectual civilization that destroys themselves, which seems to be universal around the galaxy, as through the same other reasoning, i can reason if there are millions of other extraterrestrial civilizations out there that have colonized thousands or millions of planets, that could be KII or KIII galactic civilizations, why i wouldn't be part of them, and why am i still a human. It seems extremely unlikely to be a human in that case.
It is actually a privilege to live in an uncolonized galaxy with no signs of intellectual life. It's a privilege, because the chance you're the sperm cell that will reach the uterus of your mother is even higher than the chance for this to occur, unless it is of course our fate, both in a good and a bad way.