Most people just want to be comfortable. This is fine. We do not care much about the death of other animals, as evidenced by continuously choosing not to become vegetarians. Even if a large number of species collapse because of warming, human agriculture will go on easily and the resilient species will continue to inhabit landscapes all over the world. If anyone starves to death, it will only be to the extent that they already do, which is almost exclusively because of coordination problems, not for a worldwide lack of food. Humans are resilient and easily solve problems when they are urgent. If we lose a degree of technological or economical development while fighting this problem, consider that these are not factors that truly make people happy. Quality time with good friends and family is what counts. We are sufficiently advanced that detrimental lifestyle changes incurred while solving problems related to climate change will be small in comparison to the great health and lifestyle improvements we have made so far.
The poorest people around the world have seen their incomes rise rapidly in recent years (i.e. the "Elephant Curve"). Climate change will have relatively little impact in comparison to humanity continuously bootstrapping itself into higher levels of wealth through markets, government, and collaboration.
Compare the level of action you have personally taken to fight global warming to the level of action you feel (and advocate) people should be taking. Talk is cheap. Actions reveal preferences. In a broad perspective, given today's frontier of possible technology and lifestyles, people would rather live a first-world middle class lifestyle, accepting the additional risk of climate change caused by this lifestyle. Fighting this preference is not without cost, and humanity has chosen that a different fight can occur later, solving individual symptomatic problems when these problems have urgency.