> capitalism, i.e. not putting power solely in the hands of the wealthiest.
This critique doesn't make sense. Capitalism is the private ownership of the means of production. You're actually a capitalist whether you know it or not and you agree with capitalism at a rudimentary level. Your complaint about "power in the hands of the wealthiest" is a matter of government dysfunction, not the economic system. In fact, the economic system, capitalism, is performing well in spite of the poor performance of the governmental system.
Countries such as Sweden, Denmark, Norway which are often hailed as model countries for livability and "democratic socialist" states are highly capitalistic, and by some measures more so even than the United States.
In this chain of conversation the grandparent wrote something about the 1% destroying the planet. That's a red herring. Everyone jetting around the world taking vacation, buying bottled water, driving cars, eating cheeseburgers, you name it are doing much more actual damage than just the 1% who, while doing a disproportionate amount of climate damage (however we want to measure that) are not responsible for most of the total amount of climate damage. That's not to excuse them, of course, and as a matter of government dysfunction for example ask why luxury goods like private jets or yachts aren't taxed at a much higher rate, or perhaps aviation fuel for private use (I'm not suggesting these are good or bad policies, but just examples at the surface level).
If you want to address climate change you have to not only demand reform across the board, but make personal changes in your own life. If you are unwilling to do that, you'll find yourself in similar company, shouting from the rooftops if only we taxed the billionaires and finding nothing was done to help or fix the situation.
