This unruly mob was so stereotypical that could have been supplied direct from central casting. There were 'kafiyeh' Arab-scarf-wearing Leftwing atheists rallying in defence of the theocratic medievalists of Hamas. There were radical feminists protesting on behalf of an Islamic radical regime that would slap them into a burka so fast it would make their head swim. And let's not forget the Rip Van Winkle hippies, that de rigueur cohort of aging radicals who've never outgrown their anti-Vietnam war protest stage.
And all the while, these protestors were chanting the puerile, poetically-challenged slogans we've come to expect at such events: "hey hey, ho ho [FILL IN THE BLANK] has got to go."
But the most notable ditty of the evening told of liberating Palestine "from the river to the sea". For anyone not immersed in the intricacies of Middle Eastern geography, those boundaries include the entire territory of pre-1967 Israel proper.
I've already written about the bizarre strange-bedfellows alliance that's developed between pro-gay rights socialists and pro-gay death Islamists.
Hamas foreign minister Mahmoud a-Zahar has described gays as "a minority of perverts and the mentally and morally sick". And then there's the other perennial favourite cause of the modern feral Left - that surrogate of Teheran known as Lebanese Hezbollah.
Perhaps president Ahmadinejad knew what he was about after all when he declared that homosexuality is unknown in his country. Gay relationships between consenting adults are a capital crime in Iran and many young men have paid the ultimate price for being true to their own sexuality.
But the Trotskyists aren't about to let a little thing like the hanging deaths of Iranian homosexuals get between them and what really matters. There's a much larger principle at stake here. In the eyes of the hard-Left, the task of destroying the Jewish nation-state trumps all other considerations.
This is the same cognitive dissonance that infects Canadian anti-Zionists like Queers Against Israeli Apartheid, who produce an annual flurry of publicity by trying to march in Toronto's Gay Pride Parade. It takes willful ignorance of the facts for gay activists to publicly advocate the dismantling of the only country in the Middle East where gays can live in peace.