Preferring open source is a risk mitigation strategy. The closed alternative may have better features to make them worth that risk though.
The amount of businesses closed, sold and products abandoned or swapped for the more controlled/exploitable ones is numerous, on the other hand.
This sounds a lot like a circular definition.
An "open source contributor" is not gonna wake up at 2AM on a Saturday because the business that someone else partially built on their free code suddenly went down.
This is ALSO, conveniently, why AI's will never completely replace human developers. You cannot blame, reward, or punish an entity that has no such sensitivities.