I don't agree with reparations there either, but at least there is a better case for that. It was a specific action ordered by the President himself, rather than just being a long term practice or policy that began to run out of favor as morality matured. Obviously people were hurt by that in many ways as a result of that action. And obviously the loss of wealth certainly impacted the children thereafter, but how do you even calculate that loss collectively? Japanese Americans should have been able to sue the government for damages, case by case, but America was what it was then. Just to give families of Japanese Americans some arbitrary sum, today (or at least in Reagan's day) I'm just not inclined to support that. It's not reciprocally fair.
There were reparations in 1948(?) under Truman. Some $37 million was paid out against claims. Estimates of real losses in historic dollars was well over $1 billion.