I think the questions are:
What are you hoping to accomplish by combating this misinformation?
and
What is more likely to happen than your ideal outcome?
It sounds like you're going to just get into an argument with ignorant reactionaries on the internet. You won't change their minds, they won't change yours, you won't show them how bullshit their arguments are.
My recommendation would be to not waste your time. You can inform a friend in real life that their sources are bullshit, and they will listen. But reactionaries aren't that way because they just have "wrong information." They're there because it gives them an excuse to be horrible, hateful people, and feel justified in doing so. You can't logic someone out of that position.