No, Starlink isn’t creating small orbital debris like would cause that. They’re also at the wrong altitude.

More likely it’s from something like the satellite Russia blew up a few years ago. https://www.nationalgeographic.com/science/article/russia-just-blew-up-a-satellite-heres-why-that-spells-trouble-for-spaceflight

There are tens of thousands of Starlink sats up there, but we know where and they’re mostly in very low orbit. The risk pales compared to a single Chinese Anti-satellite weapon test, which created “over 3500” pieces of debris that we know of

Most likely not. Starlink sats have a very low orbit.

There is more than enough junk up there to worry about. Keep in mind that anything of sufficient size is already tracked, but even something smaller can be devastating at orbital speeds.

That’s now our secret weapon in case we get attacked by aliens. They’ll never expect being rear-ended by a orbiting Tesla piloted by a Muskolini doll. Enjoy the whiplash, suckers!