Good social Satire.
This is hails back to the origin of Looney Tunes, which, despite the modern image, was a series of sexist, racist tales as reflected in cartoons like "Little Sambo," "Popeye," and even "Betty Boop." In the days before "adult cinema," because of social convictions against what was then recognized as pornography (referred to as "stag films"), cartoons were used to blur the edges of decency because they, "weren't real" (Don Markstein, pg 124).
While the point of this cartoon may have been to parodize Blockhead, it still is a good representative to classical elemental styles of "classic" cartoons such as "Bugs Bunny Nips the Nips" and "Popeye and the Island of the Pinheads." A modern equivalent would by hentia based on popular anime-- most often drawn/animated by members of the original animation team. Unlicensed reproductions to fulfill the demands of a minority.
This cartoon (in and of itself) calls to the question the idea of offensive material itself. What was acceptable 70 years ago is now the subject of litigation and protest.
As an educator, this is not something I would show my students. However, I feel it does bear a ethical value in the face of reverse racist comedy by actors/comedians such as Eddie Griffin, Chris Rock, and Dave Chappelle. Now in the "fourth age" of the equal rights movement, this current generation lacks direction or a positive idea of equality. This cartoon integrates a smattering of the stereotype of archiac cartoons while applying semantics/visual rhetoric to the grand scheme. You inadvertantly create a strong message when "blackhead's" head is stuck in a vase: the ostrich effect.
The message you unwittingly promote is that he is "sticking his head in the sand" rather than acknowledging the fact that he is a racial archetype. Likewise, Likewise, you are saying that reverse racist comedy, for example Dave Chappelle, are doing more harm by promoting skits involving racism when the majority of their audience is impressionable young people. To exemplify how this works with Dave Chappelle, simply look at the Rick James skit. Rather than nuse the cultural phenomina behind the artist, Chappelle promoted the drugged out, sexist image-- thereby creating several thousand plus little white boys screaming, "I'm Rick James B1tch!" The ultimate outcome?
Rick james dies in obsucrity, and millions of kids all the more the ignorant for it.
The concurrent generation does not remember the classic white face antics of Eddie Murphy in the 1970's SNL. Three quarters of the jokes used by idiots like Chappelle or Borat are based on jokes by people like Murphy and Yakov Smirnov who wrote the material during times when it was necessary (i.e. Race riots and the Cold War).
This, in essence, mocks modern reverse racism and for that I appluade you. The style is very reminisicent of classic styles while incorporating language and visuals the current generation can associate with the series parodized. I would like to see this series continued-- not just parodizing Blockhead, but other popular webtunes such as Strongbad, Homestar runner, Neurotically yours, and others. You have a good vehicle for promoting comedy at the expense of other popular cartoons-- it's up to you to take this ball and run with it.