Is there a Jewish Left community in South Africa, more specifically Johannesburg?

I married into a family with Jewish folks. My spouse's ex-partner is Jewish. Now as a young adult, my step-child has largely rejected the Zionist propaganda they were exposed to as a child.

I'm learning the "Jewish experience" can differ largely by geographics, I'm interested in learning and hearing from other deconstructed Jewish folks from a similar background. Those who's upbringing was largely influenced by the involvement of the Chevrah Kadisha (Jewish Helping Hands) organisation in Johannesburg, South Africa.

Thanks