The correct answer to this open question is the following.
Indeed, young people have historically failed to participate in the election process - fewer young people vote than those of other age groups.
I think this occurs because young people feel there is a lot of corruption and lies in the political system, and that politicians do not act with integrity.
Many youngsters notice how legislators endlessly argue with each other in the House of Representatives and the Senate, or how is the relationship between the executive branch and the legislative branch. And they don't like what they see. They turn to the other side
How does this negatively impact democracy in the US?
Of course, that behavior is not good because youngsters are the next generation that is going to run the United States.
They have to be prepared, informed, ready to fill the highest political spots and corporative spots to take the US into the next decade. And if they are not informed and actively participate in politics, it is going to be difficult for them to understand what the country needs to move forward.