Yes, how dare for people who needs their vehicle for work or does not work the same schedule that's convenient for public transportation right?
And even if 10% of low incomers drive vs 50% of high incomers drive, that's still more low income drivers since there are a lot more people with low income.
So what about the large number of people who drive to the city but do not make six-figures? (you can argue for the low percentage as much as you want, but the absolute number is still significant) Fuck them right?
"The survey was conducted as a telephone study among 520 San Francisco residents aged 18 and older during June 2011."
What if I tell you a huge portion of low income workers in SF are NOT San Francisco residents but live in other places such as the South and East Bay?
What's your suggestion? Tell them to walk from Fremont to San Francisco or build their own public transportation?
Your data is about as irrelevant as it gets for this discussion.