They also mentioned the stat that if 1 person lived totally carbon neutral for 70 years, that would offset only 1 second of current global CO2 emissions, which I'm going to presume is sourced properly.
I'm not very optimistic. Politicians follow the polls and go with what's popular, and if the people living in the rich nations have to pay more to fly to Asia for cheap holidays, and iPhones, etc, get more expensive because of carbon tax, the majority probably won't support the governments and will instead vote in populist idiots that will make things "great again". In the poorer countries, being told that the decades-old luxuries they've envied from richer nations will cost more because of government policies will also not be popular, never mind that the policies are meant to save the future.