Sentinel-6, GRACE-FO, ICESat-2 are among only a few of the many numerous LEO observational satellites that are at risk should a Kessler syndrome occur... our ability to watch and build predictive models of what's going on with our ecology can/will be lost; this is a huge added problem to the ongoing global ecological collapses and affects our ability to mitigate climate change

Not to mention all the communications systems we have in orbit that we rely on for our economy which would result in significant loss of logistics / economic efficiencies and straining growing social political issues. All of which means higher likelihood of damage to local and regional ecologies