There should be a San Jose A's and a Fremont Giants. Sharks in San Francisco with the 49ers.
Instead..look at politics and what it did to common sense.
At the very least the S.F. Giants should play night games under a dome. Since it never rains in summer or storms...it could be a simple lightweight dome. No need to shed snow- right?
Even the A's..could be under warm 85f degree boys of summer baseball. Preferably with an Apricot Orchard around the stadium.