No. We have a long ways away before the human population will be wiped out due to climate change. Most likely around 100 or so years. The issue is what happens before then. Increasing temperatures will mean less water for crops creating food crisis. It will mean rising water level which means people living in low coastal cities will have to move. There is going to be mass migration which people do not like (Conservative fearmongering and look at how the homeless are treated). The food shortages and migration will cause unprecedented poverty. Poverty is correlated to crime so there is going to be an uptick of it. If we don’t cut our carbon emission by 2030, we are going to see water wars and food wars by 2050.
What do these food and water wars mean? It can mean a lot. The rich will most likely be fine and continue with their yachts and private jets which are the biggest contributors carbon emissions. There will be more and more wars breaking out and even 1st world countries will be affected. This can lead to use of nuclear weapons which will continue to cut the human population and make things less inhabitable. Over time the human population will be cut and climate change acceleration will most likely slow down but not fully stop. There’s also a feedback loop to the planet heating up. As polar ice caps melt and the planet heats up, it may naturally continue on its own until it equalizes. It can go up to like 10 degrees which, well, I hope i am not on the planet at that time.
Not everything is hopeless. We have a lot of bright scientists and we are in an era of unprecedented wealth. I do believe when it comes down to it, the world will unite and we will be able to mitigate enough of it and create solutions. Mass solar panels is a good one. Building nuclear reactors for the future use is another. Some solutions have been suggested like turning the sky white and other stuff. Public transit is another thing picking up and will greatly reduce carbon emissions. Just remember, a majority of the pollution comes from the use of private jets, yachts, and cruise ships. People will get hungry. There is one group of people who are at fault and I think the French found the solution to it.