In my world view, the phrase "People are stupid" explains almost everything. Very few people are actually able to think for themselves. The vast majority are basically just sheep, they think whatever the media, their colleagues, friends etc tell them to think. They don't fact check, they don't think critically, they can't understand a well reasoned argument, they basically just believe things based on how much they like whoever said it. They won't accept evidence that disproves those beliefs.
They don't care about the truth, it's all just about being part of the right herd.
They don't care about the truth, it's all just about being part of the right herd.