> There is clearly a temperature at which this planet will not support human life, and we could definitely get the planet to that temperature
There is such a temperature. We are not getting to it in half a century at current emission rates, even with zero curtailment. If you have a source that shows the opposite, I’d be happy to read it.
Of course not in half a century, but it's not like the earth just stops getting hotter after 2100 rolls around.
What about 2200? Humanity at 2300? It's the same planet with the same feedback loops after all.