I don’t get this copyright thing, I’m pretty sure your allowed to use other peoples art and videos if you talk about it and dissect it, versus share it with none of your own thoughts added to it, claiming it’s your own. Lots of blogs have my photography on over the years with someone discussing various points about my work or even just putting collections together. You can use other people’s videos on YouTube too as long as you’re reviewing them and adding your own points. Half of YouTube these days is reviewing other videos and sharing chunks from them. As to what is being said, it’s better to go with ‘in my opinion’ or ‘imo’ then in USA you’re covered by free speech. It’s better to just leave out absolutes as much as possible.