So your argument is that anyone concerned about the planet should kill themselves, as that will do the most to directly minimize their climate impact?

It seems obvious to me that climate activists can use leverage, like anyone else. In other words it's perfectly reasonable to produce a small amount of carbon in pursuit of making the sweeping changes necessary. Climate change isn't going to be solved by parts of the population choosing to fly a little less often.

the argument is simply that going to the farmer's market for local produce, then going on a ski trip to Chile doesn't equal out, doesn't make you a climate warrior, and doesn't make you better than anyone else -- even if you repost Greta Thurnberg on Twitter.

That's just a mathematical fact.

The reality of solving climate change is a separate topic. 70% of emissions come from large corporations -- that's where the impact is and always was going to be made.