Young Americans are challenging beliefs their parents and grandparents once considered sacred — from socialism and Israel to Christianity.Why it matters: Neither party can count on old political loyalties to win over a generation increasingly willing to break with the past.Socialism: 35 years after the Soviet Union collapsed, some 57% of Americans ages 18–34 view socialism positively, compared with 43% for capitalism, according to a September 2026 Gallup poll.