The point is that it’s nowhere near Earth to cause an issue like Kessler Syndrome, which the space junk comment is clearly referring to.
The car is space junk like every other test payload or probe we’ve ever sent out into space that we’ve lost contact with is space junk.
This entire thread is filled with people that know absolutely nothing about Space but the basics modern “media” poorly conveys, but feel the need to comment and display their ignorance proudly just because they hate Musk. It’s quite sad actually for an actual Astronomy community, there’s worse discussion in here than reddit.