By supporting Ordinals and BRC-20 shit-tokens you're essentially saying that they're a valid use of the blockchain. And since you seem to not know this already,
BRC-20 and Ordinals only work on Taprood enabled new standard addresses and utilize the Taproot opcodes of OP_FALSE, OP_IF, OP_ENDIF and OP_PUSH. So if bitcoin was patched to invalidate these opcodes we would have no more "inscriptions" clogging the ledger. There very ability to create these wastes of space could be removed from bitcoin's functionality with a single patch. No hard-fork needed.
BRC-20 and Ordinals do not only work on Taproot.
You don't need Taproot for inscriptions, they are doing inscriptions on Litecoin (which has not upgraded to Taproot) too.