Because it isn't about people from 'White' countries that he wants. It's about people that can help America economically. Conveniently, people in the media have left out the part in the story where Trump mentioned that he would be open to immigrants from Asian countries because he believed they will help America economically. People from the poor countries who come here will most likely end up sucking off from social assistance. That is why he wants merit-based immigration. He wants to help American citizens by raising their wages, helping them find jobs first and foremost.
That is why the media doesn't want to talk about how the tax cuts that was just passed is encouraging more economic growth, how companies are moving back to America, how the unemployment level is the lowest its ever been, and how the black unemployment rate is the lowest rate ever, how people on food stamps is the lowest it's ever been, how the stock market is booming and the consumer and small business confidence is high it's been, how regulations have been eliminated for job growth for Americans. The media don't want to admit Trump is doing a better job than they would like because they are all Globalist media out to destroy America, and making up stories like the Russian collusion hoax and now this as the way they will try to do it. If one thing doesn't work, they move on to the next.
By the way Trump probably just mentioned Norway because he just had a meeting with the Prime Minister of Norway earlier in the day.