it’s realism, not defeatist. i personally do everyting i can to mitigate climate change within my realm of influence. Eg, i drive an EV, which is powered by solar power, i don’t use gas or petrol, i don’t eat meat, i buy second hand clothing. I grow what i can and compost all my food waste. I walk as much as i can. I educate those i can to try and do similar things. I just know in my heart we’re not going to succeed, because greed and indifference will ultimately be our downfall.