A lot of negative things about unions are "commonly accepted;" that doesn't make them true. It's possible that those wage increases did have a negative effect,

A lot of negative things about unions are "commonly accepted;" that doesn't make them true. It's possible that those wage increases did have a negative effect, but especially in this time of massively increased anti-union propaganda, I think that anything negative about them being claimed as "commonly accepted" deserves a [Citation Needed].