Half of the Board of Supervisors at any given time are just as bad as Dean, they’re just less vocal. The actual problem is the SF electorate.

Is it the electorate, or the group of people in power(who can and will corrupt anyone elected)?

Exactly

Voters are getting exactly what the want: talk about affordability, and action to prevent building.

The number one thing that voters anywhere do is to prop up sin eaters like Dean Preston. Then everyone is all like "The problem is DEAN PRESTON" as if one moustache twirling guy with an 8 year term could possibly be responsible for 40 years of policy.

That's being unfair to him, there is tremendous local market for millionaire homeowners that still want to think of themselves as socialist revolutionaries as long as the value of their home never ever drops, and he is merely filling that demand