Are they? Please don’t assume that my question was rhetorical. My keyhole views from 1968-1974 and 2015-2020 of the same age group would argue the opposite  but I’ll be the first to admit that the small-N observations in both cases are a long way from compelling.
 E.g. $HERSELF was very active back when, including being part of the demonstrations at the 1968 Chicago Democratic convention.
 More recently, I spent the latter interval as a returning student with a group of very, very sharp 18-25 yo students and our voter registration drives in 2016 and 2018 were less than overwhelming.