I'm getting a little more relaxed about Kessler Syndrome the more I look into it, at least in the short term. Each of those icons is about 10km across and the satellites are at different orbital altitudes. Also objects in LEO eventually drop into the atmosphere due to drag. As you move out of LEO the average distances between satellites balloons. For satellites in geosynchronous orbit each one is allocated a 'box' around 70km across although they can drift especially when they lose power and there are some in rogue orbits.
For comparison it's estimated that approximately 100 tons of pebbles and dust fall into the atmosphere every day, and plenty more just drifts past Earth continuously. We do need to come up with better mitigating controls and accidents will happen, but I think it's achievable.
Hopefully if it happens it is a short term LEO event and we are able to learn from it. There has already been one satellite-satellite collision, one is not a lot of data points to extrapolate from, but that event raises my wariness a lot:
For comparison it's estimated that approximately 100 tons of pebbles and dust fall into the atmosphere every day, and plenty more just drifts past Earth continuously. We do need to come up with better mitigating controls and accidents will happen, but I think it's achievable.