COPYRIGHT STRIKES ARE USELESS!

Like i say in the video, i understand that production companies and musicians should have the right to make all of the money from their music, but why are people who make videos not allowed to use their music in their videos. Yes the music was made by somebody else but there's more than a 10% change with the music because the video is different than the music video for the song as well as the song not sounding 100% exactly the same as when it was produced.