Think of many extinction events this planet had previously. Up to 90% of life died.
However, humanity needs to pay more respect to the habitats of the native species. But for a few dollars people easily looks the other way, unfortunately.
We'll be fine without corals, polar bears and with half rainforests.
Harsh weather events are coming, but we will be fine.
Forestwise:
> Since the end of the last ice age — 10,000 years ago — the world has lost one-third of its forests [0]
> Half of the global forest loss occurred between 8,000 BCE and 1900; the other half was lost in the last century alone. [0]
Good news: rich countries forest are in growing again in a U curve. Bad news: those countries also imports more wood than ever.
Coral polypes are habitats for many other species that some humans depends.