In today's warning from page 672 of Russia's Big Book for Totally Serious Warnings:
A senior Russian foreign ministry official said that commercial satellites from the United States and its allies could become legitimate targets for Russia if they were involved in the war in Ukraine.
www.reuters.com
Ya, I can target them too. Hitting them is another story.
Also, why would you attempt to shoot down Starlink satellites? There are so many of them that it would be incredibly resource-intensive to blow them out of the sky, especially given the inability of Russia to hit meaningful targets.