I agree to most of the video. But its optimistic tone can only come true if the European countries contribute to the immigration equally in reference to their population. If the UK continues their stance to take a few thousand refugees in 5 years, it won't come true.
Germany has not revoked its plan to take 800,000 refugees in the next 12 months by controlling the border. But Germany is not going to take a million refugees per year on a regular basis, you can be sure about that. Social tensions would explode. These first 800,000 refugees in a rather short time are going to cause huge problems for one country, the video is too optimistic about their integration into the labour market. They need to learn German up to a reasonable level first. How do you organize German courses for 800,000 refugees in short term? It is already certain that the unemployment rate will increase dramatically. Additionally, there are by far not enough apartments for these people. They can't go on living in tents or gymnasiums for months and years. BTW, experts say in the apartment market rents will shoot up - mostly on the expense of the low earning population.
No, it can only be handled if we are talking about five-digit refugee numbers for EVERY mid to larger European country. But that's obviously still far from reality.