We are a network of socialist and leftist organisers united by a conviction that workers’ self-emancipation, anti-imperialism, decolonisation, anti-authoritarianism, internationalism and feminism are integral parts of a socialist politics for the 21st century. We are alarmed by the growing influence of US-centred campist politics spreading on the left.

So let's, a group of mostly Australian and Kiwi "leftists", go after an Indian guy.

Also there's nothing else on that page. I Googled "People Against All Imperialisms" and there's no org.