Not necessarily.
There are lots of shit songs that happen to be entertaining, doesn't make them good. Like Eminem.
His songs are absolutely shit, anything after The Slim Shady LP is musical tripe. If you find it funny, that's fine by me. Go for it. To claim that man actually makes good songs doesn't exactly ring true though. Just Lose it? Mockingbird? That song by D12 where he more or less just sings about shooting people?
I'm not saying you're wrong for finding it entertaining, but to claim they're actually good, decent songs is a bit much. Considering there are bands who make good, decent songs. Putting Eminem on their level is a bit disrespectful.
-AC