Aw great, this is only going to cause MORE kidnappings since thieves will know they can get insurance money.
Much lower ransoms should mean kidnapping is less profitable and so supply should decrease (of kidnappings).
My source (which I have been pasting here already 3 times): https://www.npr.org/sections/money/2017/09/01/548032302/epis...
Maybe it would work _after_ the kidnappers have been paid.