I don't know what else to say. It's extremely simple. Targeted outreach works. You pick groups you want to include, and you target them for outreach.
Why are you making this so hard? Honestly, I question whether you're really interested. You do this on literally every thread where sexism comes up. It sounds to me like you really just want an argument.
EDIT: And, your insinuation that it's all tribal politics, instead of a very careful investigation of what outreach methods work for getting disadvantaged people into programs they wouldn't normally have access to is in such bad faith it's hard to even muster up the will to reply.