What were some negative repercussions of the equal rights amendment?

Phyllis Schlafly pointed out the ERA could mean women would end up being treated equally to men which would mean having no privileges and no exemptions due to their gender (selective service and being drafted should that ever return for example). 

She pointed many women prefer to be treated differently than men, so that loosing their privileges and exemptions would be seen as a negative to many

They worked very hard to fight it.