It's funny you should bring this up because i know someone else who also asked this same question once upon a time: "Should Revolutionaries Work in Reactionary Trade Unions?". Of course the conditions today are very different so you cannot simply transfer their conclusions one to one to your situation, but it helps us understand how a revolutionary ought to think about and discuss these sorts of questions.
Study your conditions, analyze them and apply the dialectical materialist method and draw your own conclusions.