Gotta lose everything first. Taking that fabled step signifies that whatever you lost is forever gone and there is no turning back. As long as we remain comfortable then nothing will ever happen. Also, if you understand the diffusion of responsibility, then it can be inferred that nothing will ever be done because it seems the potential hundreds of millions of people are waiting for the other hundreds of millions of people to act first. Think the bystander effect but magnified to include the entire nation.