There's a tendency to conflate identification with endorsement. Twitter muddied the two together instead of keeping it as anti-spoofing measure. Users are trained to see HTTPS as a sign a website is legitimate or secure and not just a way to confirm the public key. Democrats want to use the unconstitutional no fly list to ban individuals from buying guns. After the Boston Marathon bomb attack some senators wanted to require KYC on all cellphones and encourage the police to not read suspects their defendant rights. The reflexive opposition to COVID-19 vaccine verification is because people don't trust the government.