"Your Honor, I really meant well when I aimed the gun and pulled the trigger! Sure, everyone told me it would go off and kill someone, but can't you see that my intentions were pure?"
I'm not sure what you are trying to prove here, but obviously intent matters a lot for the purposes of crime, e.g. if you believed your life was in imminent danger and shot someone, you may not be guilty of murder.
You seem to be saying that people are indeed malicious and just lying about believing vaccines cause harm (for what purpose?), but I do believe they are just misinformed and have strongly-held-but-incorrect beliefs.
You seem to be saying that people are indeed malicious and just lying about believing vaccines cause harm (for what purpose?), but I do believe they are just misinformed and have strongly-held-but-incorrect beliefs.