As someone who was raised (for 25 years) Catholic, I know personally of the heavy emphasis that Catholics place on works, pennance, Pergatory, idols, etc. I spent my life from childhood to adulthood being indoctrinated in these ways.
Then I read a Bible.
Jesus' message is not only much less complicated than are all of the un-Biblical hystrionics that the Catholics had me learn, His message in the Bible is very clear that those who stray from His Word are not following Him, but are being deceived.
Jesus did not say these things to be "hateful" toward Catholics or Muslims or Hindus or Jews.
He said them that all might hear, and plainly know what He meant.
"I am the Way, and the Truth, and the Light. None shall come to the Father but through Me."
Jesus loves every one of us. His desire is that none should perish. And if any of us does, it will be as a result of the choice we've made: have we chosen to hear and follow Jesus' simple plea, or have we chosen to listen to another... or to nothing?
What you call "hate" is actually the greatest form of love mankind can or will ever know.
"For greater love hath no man but that he should lay down His life for His friends."
I love Catholics. I love you. I love the saved and the unsaved. I will do what I can in the time I have here to make sure that each and every one has a chance to hear Jesus' message of love.
And doing so is the opposite of "hate."
Yet you call them non-Christian. Which of the many Christian sects is the real one? Let me guess, yours. This "Everybody but me is going to hell" doctrine is not very loving, but I understand the awkward logic that turns hate into love.
Then I read a Bible.
So did I. That pretty much sealed my atheism for me. Although I did get a great admiration for a man named Jesus.