This is an interesting video, I will agree that we as millennials are the future (just based on demographics), but I've seen relatively no evidence that supports millennials being economically vialble.
https://www.google.com/amp/www.marketwatch.com/amp/story/guid/D18879E8-3EE5-11E6-93B2-3E2C5AE09933
Wages don't support their debts, the school loan default rate is the highest ever. Wages are stagnant since the 1970's and home ownership is at lowest level in 60 years. Additionally, the highest % of 18-34 year olds are living with their parents. Maybe this is the basis of the video, if millennials are living home without rents they have more capital to deploy in retail, or is it an abuse of credit cards that are providing the purchasing power?
This is an interesting topic to explore, especially as Boomers will be selling off assets in the next 10-15 years. Will millennials be able to take the other side of the trade?