How many times was Bush portrayed as a chimp?
It appears the simple point is the chimp -- now dead -- could have written a better bill.
Well, that IS true.
You could look at it that way - and actually I'd rather look at it that way than to believe that there's the amount of hateful and dangerous racism directed against Obama that this cartoon could be interpreted to imply.
I guess given the historical references to blacks as less than human and apelike - it's not really the most fortunate comparison to make if one doesn't want to have their work interpreted as being racist.
The same reference to George Bush would not elicit the same metaphorical or allegorical response- the meaning you espouse would have been immediately clearer.
And then there's the whole assassination issue and angle.
And lack of respect, etc. etc.
But lack of respect for the office of President isn't anything new.