I agree trying to save priceless artifacts is a worthy pursuit but the issue was the way they did it. It was proven and the Green family had to pay a mutli million dollar fine and lose the artifacts because the way they were paying for the artifacts directly funded isis and they knew it.
Just to connect the dots...
You buy stuff from Hobby Lobby. That money makes its way to the Green family through fair and legal means and capitalism. The Green family buys artifacts on the black market knowingly funding isis.
Isis buys explosives, makes a ied, kills a US soldier.
You have to ask how many modelers serve, served or have family serving.