No, in this case it’s a two way cycle track that takes up exactly one car lane. Before the bike path it was a shoulder, but if they removed the bike path they’d almost certainly turn it into a flex lane like the bottom deck of the bridge.

That being said, I’m sure it would induce demand and cause even more people to commute from Richmond (or worse, far flung suburbs like Antioch) to Marin until traffic is worse. And there’d be no way to bike since bikes aren’t allowed in the car freeway lanes, and there are no alternative routes over the bay.

Also do you have a source for more bikes using it? I’d look it up but am on my phone and too lazy.