If a person has harmed others, and is likely to do more harm in the future, it's appropriate to remove them from society. This is why prisons exist.

Drivers licence suspension typically is the consequence of crimes that are too minor to warrant prison. In this case, the perpetrator has the chance to make changes to their life to avoid prison. For example, they can accept slow public transit, bike to work, get a closer job, move to a place where it's easier to live without a car.

Obviously, It will be challenging for the perpetrator to reorganize their life in a way that does not require them to risk harming others, and many will fail.

But your argument that society is required to accept being victimized by dangerous drivers because it would be inhumane to force them to use alternative forms of transportation (used by millions of people too poor to afford a car, even in the most car dependent cities) is absurd.