Street preacher and bible thumpers: why do you spread hate?

There are probably well beyond thousands of opinions. God's voice is the only one that matters, and our opinions mean nothing. It makes me wonder whatever happened to letting God's word speak for itself. I've seen plenty of opinions about who goes to hell and who doesn't. God is the only one who decides that. Some people even boast about themselves, and call others deceived. How can they be so sure they're not deceived? If anyone wants to know the absolute truth, then its best to ask God. God deceives no one.