>>Israel does extreme violence to the terrorists and their operations facilities - but Israel very very carefully avoids any collateral damage to Palestinian civilians.<<
If Israel knew where the kidnappers parents lived, would sending a rocket attack on that house be out of favor because the parents are not terrorists?
I can only say what I’ve seen from the past. All the rocket attacks have been directed at leadership or operatives in the field who are actively attacking (like launching rockets or mortars). I’ve never seen an entire family attacked by rocket.
In terms of demolition of homes ... an entire family’s home can be demolished, but they will always get the people out of the house. And they won’t be demolishing a whole series of homes for an extended family, but only the one associated with the terrorist.
They won’t harm the rest of the family, but they will arrest the terrorist.
This is from all I’ve seen.