It was, up to the mid 20th century common to label Actors of all types lumpen. Because their industry is reliant on the rich to exist due to the economic costs of the form. Only some of this is the traditional associations of acting with sex work.

Most Opera Singers are iterant contract workers, who work for organisations that themselves are entirely reliant on donations from the rich, and sometimes governments. The rest have a wealthy patron or are already independent financially.

There are very few of the mid century repertory companies left, mostly state funded low grade German houses. Opera Companies make negligible money from ticket sales. Not only is it not profitable, it cannot be made so.

If the capitalist system goes down and the new socialist government doesn't pick up the slack then they lose not just their current jobs but the entire industry. They'll be collectivised like in AES high art companies or cease to exist.