Does it really matter? It's terrible judgement to post something whose intended meaning hinges on whether you know an American rap song from ~30 years ago to a public venue like Twitter. There are plenty of voters who weren't even born when Tupac was still alive.
Sure it matters. It doesn’t mean you ultimately would judge it appropriate, but take any scenario where violent rap lyrics are used and revoke a person’s ability to know they are quoting a song and it will be interpreted wildly differently.