Spoiler :

This cartoon appeared in the Herald Sun (I think) yesterday. Is it racist? Most Australians appear to think not.
Two big cricket stories (or more specifically, BBL stories) in the last week were a kid (depicted on the left) eating a watermelon with the skin on at a game, and the West Indian (Jamaican, more specifically) cricketer Chris Gayle (depicted on the right) making inappropriate remarks to a female reporter in a live mid-game interview, for which he was fined $10k by Cricket Australia (CA). The latter has illuminated a division between those who think his conduct was appropriate v those who don't (or perhaps less charitably, between those who think sexual harassment in a male-dominated workplace is just a bit of fun v those who don't), and it has been highlighted that Chris Gayle has a bit of a history of making inappropriate comments. So the comic combines the stories to suggest that CA would like Gayle, a major draw-card for the tournament, to stay silent rather than make a spectacle of himself.
Of course, Americans may look at the comic and think it's terribly racist, and the answer to this is that 'black people and watermelons' is a specifically American trope that simply doesn't exist in Australia, and the 'black people' referred to in that trope are African-Americans, not Jamaicans such as Chris Gayle.
However, there is a sufficient awareness in Australia of this specifically American trope that people feel the need to explicitly point out how the comic is apparently not racist, and I suspect the artist intends to subtly reference that trope. This awareness could be influenced by a KFC ad shown a few years ago during the cricket season and the West Indian tour of Australia which depicted rowdy West Indian fans being placated by buckets of fried chicken - no-one in Australia was aware that this could be considered racist until some Americans objected, and American tropes became a subject of discussion at the time. The general consensus is still probably that the ads were not offensive, and their removal was simply the result of over-sensitive Americans imposing their own guilt on the other side of the world.
What I want to discuss is whether Australian awareness of the American watermelon trope, despite the trope's irrelevance in Australia, makes the Australian comic unacceptable. In an increasingly interconnected world, how necessary is it to pay attention to the racist or other negative meanings present in other cultures, and is cultural ignorance bliss in this regard? The US is, arguably but notoriously, a fairly insular place, and it's probably safe to say that American racial tropes are more known outside of America than non-American racial tropes are known inside America. If awareness of external racial tropes constrains the extent to which certain images or words can be acceptably used, does this in practice mean that non-Americans must avoid what Americans view as racist, but Americans need not avoid what non-Americans view as racist?
More broadly, meaning can differ between participants in a discourse even within the one country (the US is not monolithic). To what extent is it acceptable for people to stubbornly retain their own understanding of words or images despite knowledge of other existing meanings, and is the difference in understanding something that should always be acknowledged by the other side of an argument? This is an issue which came up when discussing the Confederate flag - it apparently means different things for different people, so who gets to claim ownership over the meaning?