THey can be taken down, sure, LBRY.tv was "retired" because the SEC sued LBRY Inc which is the blockchain Odysee runs on and which took over from LBRY.tv

Alternative media sites are the backbone of what Web 3, as it is now, actually represents. Alternative sites hosted on-chain and with elements of open-source/decentralization are miles better than KuckerbergBook and CIA/Mossad owned Alphabet-approved Google properties.

If there was a resilient, sufficiently decentralized, million-user alternative web 3 site; it would be a big deal. you know that's true