I think it’s a few things (and I’ll add that I volunteered for the vaccine trails, volunteered at vaccine centres and had mine as soon as offered so I don’t agree with any anti-vaccine arguments).
Firstly I guess if you did truly genuinely think it was dangerous, I mean really dangerous, you might feel like you had to protest, especially against children having it. If you really believed you were right and that it was going to kill people, I can see how some people with that view would consider it a moral obligation to speak out against it.
The sheeple comments and mocking people who’ve had the vaccine I think is more a need to reinforce their own views. And also demonstrate how clever they are that they’ve not being sucked in and haha all you idiots have.
And then when it comes to discussions around conditions being placed on society based on vaccine status, again I can see why people would be furious if they really thought it was dangerous and felt they were being forced into it. I’d be furious if I felt the government was forcing me to take medication I honestly believed was dangerous.
And then some people are just arseholes.
And you have to remember that plenty of people who don’t want the vaccine aren’t like this. There’ll be people just quietly not having it, but you’ll get very vocal people in any group.