A lot of people suffer from incontinence. He has many other qualities you could make fun of, but leave his medical condition alone.
Remember when that douche weasel was making fun of the mentally challenged and all his supporters were laughing? Pick things he has control over, like being a fucking traitor.
The fact you think that there's some sort of homophobic intent with this is such a self-report.
You see this image and you think that the joke is they're gay, because them being gay would be an insult in and of itself. Which is like grade school levels of shallow interpretation, but more importantly, ignores all the context.
This pic is actually rather flattering by comparison to the Nazi's real body. He's got a lot more orange pubic hair, and the stench is so bad the air around him bends light.