I’m a pilot though, so fairly familiar with how ATC works.
In many places most day-to-day atc operations are already automated and the work is largely data-entry/answering service on the radio. We’re starting to get to the point where speech recognition is better than humans, so it would be perfectly fine to have humans communicate routine atc stuff with a robot.
Of course we’ll need humans available to react to emergencies.
It’s always the people with no experience in a domain thinking any profession can be automated away except theirs.