This all started, in earnest, with Response Policy Zones being added to BIND. RPZ allow DNS resolvers to lie to clients by returning (nxdomain or redirects to other domains) and the client does not know it is being lied to.

    https://www.isc.org/docs/BIND_RPZ.pdf

At first, RPZ was used to block known malicious domains (drive by malware downloads, etc.). Then, the security weenies started using RPZ to block other things like TikTok (for administrative/legal reasons). That's when the DNS became a big lie.

I guess some day, one political party will use it to block the websites of other political parties, etc. That's stupid to say (I know) but that seems to be the slippery slope we are sliding down.