It has been the case for the past several generations that young people, particularly "intelligent" young people going off to college are "liberal" in their viewpoints, and become more liberal throughout their university experience.
Young adults are not shifting to the Right politically because they are brought up to be pussies. And there you have it.
Young people are not growing up to be conservative because they've been brought up to be
"pussies", or because they've been brainwashed by liberal universities. They're not growing up to be conservative because they can see what a lying con Republican policies have been.
Millennials have screwed over by Republican economic policies since the day they were born. Neither Generation X or the Millennials are expected to do as well economically as their parents, or to live as long. The Baby Boomers have bankrupted them to pay for three generations of tax cuts, and 20 years of war. The US economy has become stratified by wealth and privilege. If you were born poor in 1980, you had a 20% chance of getting a good education and working your way into the middle class. Today you have a 2% chance.
The USA is no longer the land of opportunity. Republican tax and economic policies have ended wealth and opportunity for all. Now nothing about Republican tax and economic policies are small "c" conservative. They say the words - small government, balanced budgets, law and order, but in reality, Republicans have steadily increased the size of the government, the size of the deficit, and have been most ineffective in dealing with matters of law and order. Republicans are simply not a conservative party.
My generation wasn't graduating university with the millstone of a year or more's income of student debt around our necks. Baby Boomers have taken everything and left nothing behind for their children and grandchildren. The high quality education American Boomers received has been shot to hell because of political destruction of the system and 40 years of tax and budget cuts for education. When you have conservative parents directing that their child not be taught science, evolution, climate change, or the history of racism in the USA, or enroll them in "Christian" schools which indoctrinate them into conservative dogma but do little to prepare them for work in the 21st Century.
War and tax cuts for billionaires now have the middle class subsidizing the wages of the most profitable corporations in America. Young white people aren't having babies because they can't afford to. They're living with their parents for health insurance and because they can't pay for a house and student debt.
Why would anyone under the age of 50 vote for Republican economic policies, designed to favour investors over workers. Only a gullible fool or someone making more than 1 million dollars per year would ever vote for Republicans just based on the economic record.