The concern is not that people will start dropping like flies, it's that the changing climate will have destabilizing effects on the economy, geopolitics, and the ecosystem. For example, drought contributed to the Syrian conflict, the rise of ISIS, etc: https://www.pnas.org/doi/10.1073/pnas.1421533112
If individual citizens can affect their local politics to mitigate climate change, it is important to do so.
That's the rational concern. The actual concern amongst large numbers of people is that we are literally "going extinct", and those people are leading the narrative. I look forward to telling my grandchildren how millions of idiots doubted they'd ever exist.
Population in Syria has more than quadrupled between 1960 and 2010, so they had to feed four times the people from the same area of not very fertile land. Are you sure climate change had a greater destabilizing effect? If so, please explain.
> Are you sure climate change had a greater destabilizing effect?
Read my comment more carefully. You don't get to dismiss contributing factors simply for not having the greatest effect. The world is complex, nuance exists.
If individual citizens can affect their local politics to mitigate climate change, it is important to do so.