You're tight lipped because you're afraid of being called a Nazi, a white supremacist. You're too cowardly to act because "mug optics". Now even your neighbors or your immediate family members would rat you out if you said something that doesn't align the party's ideology. You're going to be banned using major services for supporting the "wrong" candidate.
Do you want to know where I've heard that before? Right. North Korea, China's Cultural Revolution, Pol Pot's regime in Cambodia, Fidel Castro's regime in Cuba.
A core need is also the desire to reform a broken system. Most people haven't even accepted the premise that they live in a broken, corrupt system, in order to want to reform it.