(Besides, in most bus networks you actually can use the buses without using the stations — most allow riders to be dropped off anywhere along the route. But that’s entirely besides the point, as you haven’t presented a lick of evidence that statistically significant crime is happening in public transit stations.)
In my car I have a lot of control. Heck, I don't get into drive through fast food lines in sketchy areas because I don't like the idea of not being able to go forwards or backwards if a criminal type walks up to my car.
I ride motorcycles. Very dangerous. But I feel safe because I ride with my eyes open. In 20 years, I've had maybe 1 close call. While most riders I know have a crash in their first year.
And on public transit, basically all you have is hope.