That's true of other cars, too. They're big, change direction slowly, and are covered in bright lights. Pedestrians are small, can (and do) change direction quickly, and often wear dark colors, even at night.

Cars are also much more predictable. They have lines that show where they're going, (usually) signal before changing direction, and (IME) are much more likely to obey red lights. I rarely see cars simply ignore a red light, but I see pedestrians do it all the time.

Cars aren't often completely unlighted and painted in dark matte colors while they are in the roadway at dusk or night times.

Cars don't suddenly become visible unexpectedly unlike pedestrians, so that seems like a strange argument to me--with the notable exception perhaps of right-on-red, which isn't universal for sure (presumably for this very reason). Even then, the moving traffic has the right-of-way there.