Starlink hasn't rendered telescopes inoperative, nor will it. They still work for 99+% of viewing time, and the satellites in question are invisible on most of the radiation band telescopes can operate on.
This is a tempest in a teapot complaint. Ground-based telescopes already need to account for the existence of satellites, airplanes, birds, the ISS, etc. The Starlink constellation is just increasing the number of the things; it's not changing the nature of the challenge.
Or would you recommend we ban microwave ovens because they deliver noise near the radio spectra we use for Internet communication?