Earlier quoted context omitted.
Overpopulation rhetoric is eugenics.
No it's not. There are too many humans on the planet. Reducing the number would lead to a more sustainable situation. That's just basic logic.
Worse, the logic of the "climate action now" position is that we can't wait for 2050. That will be too late. Well, if you want to reduce the population by 2050, what concrete steps do you propose? (I know, you didn't say 2050. I think "action now" is inherent in the logic of your position, though.)