I am making no claim about what effects would be bigger (other than atmospheric drag, which is always the biggest effect in LEO). All I’m saying is that in gene

I am making no claim about what effects would be bigger (other than atmospheric drag, which is always the biggest effect in LEO). All I’m saying is that in general, all those nonlinear effects we tend to ignore, when integrated over long periods of time, tend to make orbits change their eccentricity and inclination, and that makes them more of a collision hazard because the relative velocity is higher than it would be if they were in more similar orbits to the thing they collide with.