wonderarity:

You can ship two men together without hating on a lady. 

You can ship two ladies together without hating on a man.

You can ship a lady and a man together without hating on queer pairings.

You can ship two (or more) characters who aren’t canonically together without hating on a canon couple.

You can ship a canon couple and not hate on non-canon pairings.

Basically you can ship anyone and anything you like and not be a douche.