If Global warming and/or climate change is real, wouldn't it be smart to plan for it instead of kvetching about it? Like infrastructure changes, moving cities out of potential high water zones if all the sea ice melts? Develop new crops that grow in the changes areas, water management for extremes in moisture? etc?
There is no doubt that climate change is real. It's a scientific fact - climate changes.
You hit on what everyone puts in the background - it's not about the changing climate and "OMG the Earth is going to die!". It's about inconveniencing shortsighted humans. Part of that is not the fault of humanity. When sea level rose, or it got too hot or too cold 10K and 20K and 30K and 40K and 50K years ago, humans picked up and moved. Humans had less of a grasp of science and of the planet, but they were much more practical in the "oh well" sense. Climate change made some areas less liveable, farmable, etc and other areas more so. Humans adapted.
Over the last 100 years (notice the exponential difference), we built complex infrastructure 100 feet from a three dimensional body of extremely dynamic fluid that takes up 70% of the Earth's surface, is way deeper than the highest terrestrial peak, and somehow we get upset when that dynamic fluid fluctuates by 0.0000000001% over a few hundred years.
They like to say it's about the Earth, but it's really about the hubris of humans.