I am happy to say that in the four years that I have been a Catholic, I have never heard one Catholic say anything negative about Protestants. In fact, Catholics hardly say anything about Protestants.
Having been raised in a negative and ignorant anti-Catholic Protestant culture, I sometimes find myself wanting to react in my old Protestant way and lash back at the anti-Catholics. But keeping the example of my fellow Catholics in mind, this kind of back-handed slap is as far as I allow myself to go these days.
Happy Easter!