They did the exact same thing to Germans in Canada in WW2. It's weird they never talk about that.
Only the ones considered a risk. All Germans who immigrated after 1922 were required to register. Out of the 16,000 who were registered 850 were interned.
21,000 Japanese were interned, 77% were British subjects, 60% were born in Canada. They weren't allowed to return to their old communities on the coast until 1949.
Not even close to the same thing.