I think a lot of the problem is general apathy. As a software engineer I came into this world with a desire to improve the world through technology, and landed in a world where nobody gives a damn about anything besides getting paid. Though, to be fair, when you're a small cog in a huge company where half of the time you don't even know what's the bigger picture, and the product you're working on isn't yours in any way, it's hard to care, and this carries over easily into everyday life.

Climate: A lot of people don't even think it's man-made, or that it's serious, or that we can do anything about it. (Also I think that it's quite a shame that it's often mentioned as "Save the planet", as if Earth is going to get destroyed, and not "Save humanity")

Work automation: Even software engineers say how automation will "kill jobs", which betrays the worldview in which it's only important to have a job and make money, doesn't matter what your work is.

Inequality: Again, most don't care and believe that poverty is a result of moral failing, or just think that it's not their problem so they have nothing to do with it.

Fascism: Youtube is absolutely brimming with terrible content that leads people down that path because it's so simple and seemingly intuitive, and the prevailing opinion (at least around me) is that everything else is just "feminazi sjw feelings" propaganda. Even "anti-fascism" is often seen in a bad light.

I agree with you completely, the solutions are there, we're just not using them, and I think that the bulk of the problem is that most people have been conditioned to a certain worldview where everything is as it should be, and has been since forever (very often nationalists like to project their modern worldviews into ancient and medieval history), and your only concern is your day-to-day life, to have a job, make money and numb yourself to reality ("have fun") until you die.

We have to get people to believe in societies again, to make small mutual-aid agreements in daily life with our friends and family and make them seem normal and how societies should function. And that's something deeply entrenched in human culture, the "general wisdom" we tell kids and rarely do ourselves: "Be kind, help others". Just today I saw a woman accidentally get her front wheel stuck in a ditch, and she couldn't get out. Almost instantly a couple of complete strangers that were passing by came to help, and they managed to get the car unstuck. As Mencius said, if someone were see a child about to fall into a well, they would immediately and without second thought run to save the child, our default mode is to help those who need it.