San Francisco won't be satisfied until they've completely driven out all the tech companies and their employees.
But it's not a question. Most people in SF (let alone those who commute in) do not work for tech companies.
Edit: Teachers need to make 25,000 a year more to no longer qualify for need-based government aid. Not 30,000.
The hypothetical person in your example must be making way under local poverty level income to have trouble living in SF without housing and tax expenses.
They could get a job, or move out and extract rent from a techie.
From my perspective, they are sitting on a winning lottery ticket and whining about how they don’t want to spend it, but want all the other benefits.