Trump orphans children

Hearings are being held in the Senate on the Trump administration's policy of separating children from their parents. One thing that has been made clear is that the idea was Trump's and was always to have children permanently taken from their families, with no intent to ever reunite them, with the children being treated as orphans. In simple terms, Trump planned and executed stealing people's children to punish them for daring to come here and to deter others from doing the same. How is that not terrorism?