Every animal adapts its surroundings to fit its needs as best it can. We're just really good at it.
There's this sort of nihilistic hopelessness that seems to have coincided with the rise of social media and its not really a true reflection of events. The world has never been more ethical, never been more healthy, never been more free than it currently is today. Humans are, by far, the most successful and nicest species that has ever arisen in the entire Universe that we can tell.
You talk about the bad. There is no species on Earth that will be attacked by something and then defeat it and nurse it back to health in the way that humans do with animals all of the time. There is no species who will protect other species for no other reason than kindness like many humans do from Save the Whales to vegans.
By almost any metric that you care to measure, humans are the most ethical and also the most powerful species that has ever arisen. This doesn't mean that we're perfect or that there aren't societal challenges to face, but there's too much of a focus now on the bad without the celebration of all of the good things happening in the world and the lack of balance is hurting everyone.
I fundamentally agree with most of this:
Humans are indeed exceedingly well-adapted. It's also true that our perception of reality is somewhat skewed by what we're exposed to. Humanity absolutely is at its most ethical: crime rates are lower than ever before; human health is greatly improved (see life expectancy).
Yes, humans are the most successful (although we could of course have a separate discussion around what constitutes 'success' and the pros and cons of that) species by a country mile.
Are we the nicest species that has ever arisen in the entire universe that we can tell? I would have to question that one. Are we nicer than goldfish?
I do get your point that there are many, many humans who
proactively do good (as opposed to passively
not doing bad, à la goldfish). You give vegans and Save The Whales as good examples of this. However, I would point out that these are in a minority (as things stand, although we can see that veganism is growing exponentially and is already thought to be past tipping point).
So this supports your point about humans being 'nice' and it's true that, as a proportion, there is currently more 'niceness' than ever before. But I don't think this negates the fact that the vast majority of humans do horrific things on a daily basis.
It's the objective reality that factory farming happens on a staggering scale and involves systematic imposition of tremendous suffering on trillions of sentient beings. Whether or not we find ways of justifying it, that behaviour is not 'nice'.
It's true that we are doing
proportionally less of it now than we have in the past, but nonetheless, the vast majority of humans still engage in it. In China, live animals are eaten as a delicacy.
Live animals! Where is the outrage? If the majority of humans really cared, then we would act to stop this.
Those who protect and nurse animals are very much in a minority because many times more will readily harm animals (or pay others to do it whilst looking the other way). Even many (most?) pets lead miserable lives: birds and rodents spending years in tiny cages for human amusement.
But it goes beyond our treatment of non-human animals. Look at how we (albeit selectively) support wars. Again, many do speak out and protest - but not enough to stop it happening. Our leaders engage in wars yet we continue to give them our votes. Do we really care about the people of Afghanistan, as long as our oil prices don't go up too much?
Human violence is way lower than ever before, as is crime generally. There is more equality, better health and more luxuries for just about all of us. The evidence is overwhelming: we are - without question - heading in the right direction.
Despite all of this, I do believe that the majority is still full of hate, engages in tribalism and contributes to mass suffering
as things stand. We tolerate others being exploited; we tolerate being exploited ourselves; we tolerate tremendous privilege for some whilst others live in poverty.