RLA is a strong force.
I am not so sure, the whole reason the RLA exist is to prevent damage to other industries caused but labor disputes in the transportation industry. The RLA is a pretty solid price of legislation, it would be hard to get rid of organized labor in the transportation industry with out repealing large swaths of the RLA. Not impossible, but if you go read the actual RLA you see it favors industry in a lot of ways. If you want you organized labor though stand strong with your brothers an sisters. Unions are not perfect, but the alternative can have extreme results, go Google Henry Frick, and the Pinkertons. Considering the country is being driven head strong into the turn of the 20th century, it is good to study history.