technically you should be able to download video and you should not be prevented from this, at least to have a proof somebody was spreading hate speech or insul

technically you should be able to download video and you should not be prevented from this, at least to have a proof somebody was spreading hate speech or insulting you or your relatives. Of course you can camcord the screen but this sounds like a stone age solution. Do you know for example that you cannot take screenshots of netflix in your browser on Mac, and therefore cannot make a meme, which is a fair use that has been taken from you?