You could complain about it. Or you could just stop using YouTube, or other services that make you angry.
Most of the people this happens to don't ask for permission before using other people's content. If I made something, and someone else used it without asking, I wouldn't really care what they were using it for, I wouldn't like it.
Also, in the future
>>6 >>8, we can all tell you are the same person. It's really obvious.