Fortunately and unfortunately we let all the environmentalists have their way as long as something works.
When the rolling blackouts come there will no longer be any environmentalist voice or NIMBY campaign.
The grid and source power will be built and improved but it may come to blackouts to really move on it. All the more reason in CA to have solar and battery back up.
SCE is installing battery stations in transmission starved Orange County for this very reason. Grid improvements move very slow until a crisis. Assuming the alternative is a central planning type government I am perfectly willing to live with the shortfalls that we have.