If Disney had any sense at all, they would have realized back when Sinclair was first forcing all their affiliates to air right-wing propaganda,* that their association with Sinclair is an existential threat.
Back then, they should have started dropping their affiliation with Sinclar one tower at a time, as they secure alternative broadcast arrangements in each area. Starting to do it now is better late than never, but I bet Disney execs are too clueless and spineless to stand up to Sinclair is any real way at all, in part because it will cost them a few $$$.
* https://www.cnn.com/2004/ALLPOLITICS/10/19/sinclair.kerry/