It's already affected.

Current satellite levels have raised natural background brightness by 10% in dark areas that are normally free of artificial light pollution:

https://www.universetoday.com/150759/satellites-have-brightened-the-skies-by-about-10-across-the-entire-planet/

Just wait until all this over-commercialization of space results in 100x the number of satellites, as well as orbiting billboards.