We're talking about a city that just built a brand new, terabuck priced stadium (which will be around for 20-30 years) 43 miles out of the city in a car-centric suburb.
Judging from the people driving up and down 101 with flags flying, the people wearing 49ers jerseys year-round in San Jose, the big BBQs hanging off the big trucks in the parking lot of games, and the truck commercials that litter televised football, the new car-centric location suits the football team nicely.
I'd be much more upset if the SF Giants decided to move out of the city!
[1] http://www.mercurynews.com/ci_23414780/49ers-new-stadium-cos... [2] http://www.bizjournals.com/sanjose/news/2015/03/11/tibco-sel...
Could be worse, the SJ Earthquake's stadium is adjacent to caltrain, but you have to take a crazy bus route to get there. You can see it, but you can't walk to it.