Read more carefully. They didn't say 25% of all emissions.

That's not what I said, it isn't 25% of all emissions, and I didn't say it wasn't worth it. I pointed out that the deaths from lack of cars without a plan would outweigh the lives saved by removing cars.

It absolutely is worth finding a way to remove cars in their current form. There are also far more effective things we can do, like eat less meat.