[x1798DE]

No idea if what OP is doing is or isn't fair use, but fair use doesn't require the content creator's permission, and in fact if you have the content owner's permission you generally don't need to invoke fair use at all (since they are in a position to simply grant you permission to use their content).

[ev1]

There is basically no chance that stealing the entirety of someone else's content (a full clip), no commentary, no parody, just a straight reupload onto their own account for views/subs is fair use.