They are. Clean energy mandates are being passed in many states; climate change and the Green New Deal is a front and center topic in the Democratic presidential primary race; the Paris Climate Agreement passed on a global scale; China is electrifying transportation and building as much solar, wind, and nuclear as fast a possible; India is phasing out coal as fast a possible; and on and on.
A person as an individual isn't changing their behavior to a large extent, but people in aggregate are.
> And that is what causes climate change.
No, it's not. Again, climate change is caused by injecting sequestered carbon into the carbon cycle. Previously, it just so happened that the act of driving your SUV around did exactly that. However, more and more that's not true. As we electrify transportation and clean the grid, the act of driving around becomes less and less what causes climate change.
> We don't have time to develop all that technology
We already have the technology, it's just a matter of deploying it. Every auto manufacturer is releasing major electric models by next year. Clean energy generation in the U.S. is set to surpass coal generation this year. China is electrifying transportation and switching to clean energy (including nuclear) as fast as possible. India is building more solar than ever and accelerating that deployment.
As I'm sure you've seen, my favorite climate change joke is, "They say we won't act until it's too late... Luckily, it's too late!"
Climate change is my generation's great challenge. If we lose, we die. So, many of us are fighting with everything we have. Some are trying to get people to change behavior, some are trying to make drop-in replacements. But none of us are giving up. It sounds like you've already given up.
FYI, HN is limiting reply depth, so I doubt I can reply more. Please email me back if you can.