Why are Christians so full of hate?

[I_am_not_mafia]

Trust or confidence is the very definition of faith. 

Not in the slightest.

You have confidence in something because of experience. So for example, I am confident that if I jump out the window then I will fall to the ground. Experience of dropping things from the window onto the heads of those below has led to this confidence.

You need faith when there is no reason to have confidence.