It’s theoretically possible to… support an overall tax cut that raises taxes on the rich too. But it’s worth questioning the value of trying to force these answers into a coherent political framework [as the poll talked about here does] rather than accept that Millennials, like most people, have much, much better things to do with their time than form highly nuanced and non-contradictory political opinions. Political nerds tend to really overestimate how much most people care about public policy, and how much they feel it connects to their daily lives.
One conclusion we can take away from the report, though, is that Millennials display a certain degree of economic self-interest. Just look at what happens to support for a living wage as you go up the income scale: