“Loose” in the sense that they are both video clips featuring human beings?
I guess i cant help you man.
Both have the same music and he is rhyming to the same word pattern.
No, seriously: one has girl sitting by a piano that seems to be magically travelling through a variety of environments, while the second has a man sort-of dancing while hanging out in the neighborhood. Visually, I can’t think of two clips that are more dissimilar.
As for the song itself: it’s a hip-hop song sampling a pop song. How is it any different from of the thousands of other hip-hop songs sampling pop songs?
Perhaps. I’ve shown multiple examples of what i find funny. Give an example of your type of “funny”.
Nm.
Here is an actually funny parody (Weird Al, White and Nerdy) that you can tell is a actual parody of this (Ridin’ Dirty).
I think I’m hitting the wrong audience here. 
Part of it’s humor is its utter atrociousness. I’m laughing at him, not with him.
Oh, it’s atrocious all right, but I am astonished that it’s the “funniest thing [you]'ve seen in a loooooong time.”
Yep.
I’m astonished at the across-the-board negative reaction it got here. This is why I said I must be reaching the wrong audience. People elsewhere share my sentiments, trust me. 
The OP told you this was not Vanessa Carlson and it wasn’t 
Its
There’s this kind of hipster humor where you, knowing how fun it is to laugh at bad things, deliberately make a bad thing so it can be laughed at. Is that what this is?
I hate that sort of hipster humor, being the stodgy fucker that I am.
This is just a cringe humour fail. There’s the germ of a funny idea somewhere there, riffing off the meme that Carlton’s song is “the whitest song ever” (as the Wayans brothers would have it) and contrasting that with lived Black experience. But naah, this shits all over that germ in a patently unfunny way.
I’m semi-pissed at you, Ambivalid. I’ve had that friggin’ song stuck in my head for two days now.
If I could fall into the sky
Do you think time would pass me by?
Really, Vanessa? I hope you wrote that when you were in sixth grade.