The issues with Unions is there appears to be no way for a company to hire non union workers. Once this happens you are basically the mob. And hold the company and other employees hostage to mob rule. Which is almost always not driven by logic.
There are enough remote jobs.
The idea that you want a specific job at a specific place to allow you to work remotely is insane. Nobody owes you shit. Either you like the terms and work there or you don’t and find another job.