There are several things to consider to answer this question.

In the case of babies that never eat, are they dying due to starvation, or are there other issues that caused them not to eat in the first place, and contributed to their death?

In the case of switching from one prey to another, can the snake be considered to be starving itself if it is possible it doesn't even recognize the new prey type as food?

In the case of snakes that are stressed due to improper housing, or wild caught snakes that have not yet adjusted to captivity, is it starving itself to death, or is it trying to stay alive because in its stressed state, it seems safer to not eat than to make itself vulnerable by eating?

I would expect it is EXTREMELY rare, possibly totally non-existent, for a BP to starve itself to death when it is healthy, housed properly, and offered the kind of food it has previously been eating.