Statistically, you are twice as likely to die riding a bike vs driving.

And you're way, way more likely to die due to complications of a sedentary lifestyle (due to driving instead of cycling), which blows that difference out of the water.

On top of that, the more people bike, the safer it becomes (both because of more/better bicycle infrastructure, and fewer drivers). Statistically, I'm making myself safer by trying to persuade people to try it.