You are mixing up advertising slogans and beliefs, and it's why "save the earth" has largely been abandoned as a slogan in favor of "the earth is fine -- it's h

You are mixing up advertising slogans and beliefs, and it's why "save the earth" has largely been abandoned as a slogan in favor of "the earth is fine -- it's humans that are in danger." Even that is a bit difficult. We're really talking about reducing the carrying capacity of the earth in most scenarios for both humans and other animals. Environmentalism is saying that many humans will die on the default path, and this is a path that can be diverted with sufficient action. The longer we wait, the worse the action is going to need to be and the more people that may die. But nuances are difficult to communicate when the other side is working in wholesale disinformation.