The fact that they're demonstrably wrong in most of it, doesn't mean that they're necessarily arguing from bad faith.
You make valid points, but when they are confronted with even scientific evidence of their errors, they cast the information aside as if science is their enemy. These same believers you are defending will lie and manipulate in their discussions to create or repeat lies.
Your defense suggests they are innocent because they believe those lies that they infect others with. I argue they are not innocent at all.