Young wasn't trying to remove Rogan's music. He was exercising his positive liberty, to act as he wanted: which was to not be on a platform with people he perceived as ultra-shitty & socially-ruinous.

Young had (nearly) no expectation of causing change. There's a possibility he thought this really would, right now, have enacted change, but I highly doubt he was so deluded. Young simply knew he couldn't be party to such a system, and said he was unwilling to remain affiliated with it in it's current dangerous fallen state.