I don’t think “hate” is the right word. Many feel that we are self-righteous i.e that we make it clear we consider everyone else to be wrong. Some may feel we make too big an issue of being Catholics and can’t understand why we seem unable to just practise what we believe without mentioning it so frequently.
Others may find our apparent intolerance offensive, especially outspoken condemnation of others’ “sins”. We can possibly appear very judgemental.
Equally we may seem overly defensive and possibly lacking in the ability to laugh at ourselves.
Anyway, - just a few personal thoughts triggered by the title of the thread.