There is a high degree of "blueness". I live in Austin, which is very blue, but not so blue that we didn't criminalize public tent living and enforce it. Dallas and Houston are "blue", but far less than Austin.
The West Coast cities, LA, SF, Portland, and Seattle are much more liberal than most "blue" cities.
Dallas and Houston are two cities with higher violent crime rates than San Francisco, so some array of reasons has Austin better off than both.
Regardless, I live in SF, and love it here, for way more reasons than the tech scene (it's actually a coincidence I live here as far as my job goes). I really hope we can improve this situation, regardless of the relative scale compared to other cities. It seems like part of a national problem.
The West Coast cities, LA, SF, Portland, and Seattle are much more liberal than most "blue" cities.