Your first link is US only, your second link is about a completely seperate issue. You don’t need to dismantle capitalism to protect the climate.
In Germany, where I live, the voters could easily vote for the greens “Grüne” and the left “Linke”.
If those two parties had a majority in government, we’d have a climate friendly system in no time.
But they don’t. We had a conservative government for 16 years. Now we have a center government, which sadly includes the small government / free market party “FDP”, blocking all significant progress.
No systemic oppression stops people from voting Left/Greens. But they never did, and never will.
There’s now an uprise of the far right party “AfD” in Germany, to the point it’s becoming one of the major parties.
In Germany people have the choice readily available to stop actively damaging the climate.
But every couple of years, they freely choose to not do that.
I feel like many left-wing people regularly forget about the billions of people who genuinely do not care to do anything about climate change.