Rant about haters of song covers

OK, so I noticed that whenever I go to see a youtube video of a cover of an original song, a bunch of the comments are something like "F**k u, u ruined the song" or "You a slut, *insert artist here* woud have hate dis". This is especially seen on covers of classics (like covers of Beatles or Elton John or MJ songs). It's starting to get on my nerves. I hate how a genuinely good song is hated upon by people, simply because it's not the original. They just say a direct insult, even if it's pitch perfect. I mean, most of the time, covers aren't better than the originals, but if it's good, it's good. It should be a good thing that they are honoring their idols, but instead, people rant about how it's so much worse than the original. Change even one thing of the song, and people get all sensitive and make angry comments. If they change the tune or a girl instead of boy (or vice versa) people get upset.