This is somewhat correct. "Space debris" does include both human and natural debris. Since most natural debris orbits the sun and most human debris orbits the earth, Nasa uses the term "orbital debris" to refer to human caused debris.[0]
The difference in location means that while more natural debris enters earth's atmosphere, that doesn't mean that chances of colliding with natural debris is commensurately high. Orbital debris spends much more time near earth before it burns up, so has much higher collision chances per object that burns up.
In fact, the chance of collision with natural debris vs orbital debris will be very dependent on the specific orbit you are discussing as orbital debris is not evenly distributed.[1]
I higly doubt that there isn't a significant range of orbits where the risk of damage from orbital debris exceeds the risk from natural debris.
The difference in location means that while more natural debris enters earth's atmosphere, that doesn't mean that chances of colliding with natural debris is commensurately high. Orbital debris spends much more time near earth before it burns up, so has much higher collision chances per object that burns up.
In fact, the chance of collision with natural debris vs orbital debris will be very dependent on the specific orbit you are discussing as orbital debris is not evenly distributed.[1]
I higly doubt that there isn't a significant range of orbits where the risk of damage from orbital debris exceeds the risk from natural debris.
Edit: added citations
[0] https://www.nasa.gov/mission_pages/station/news/orbital_debr...
[1] https://www.nasa.gov/news/debris_faq.html