[DINKDINK]

>In a buyers market. With the small block size, bitcoin is a seller's (miner's) market and refusing to upgrade preserves their market power - hence the tragedy of the commons.

The produced good (SHA256 hashes and the transferable UTXO set of bitcoin nodes) is an excludable, rivalrous good. Hence it doesn't suffers from tragedy of the commons problems. This is the foundation of excludability in economics.

https://en.wikipedia.org/wiki/Excludability

"seller's" or "buyer's" "markets" are weak concepts that don't control which goods are produced. If an agent market sells or market buys that doesn't dictate which goods are produced.

Again, no amount of production nor no amount of consumption can get a consumer or producer to shift their consumption or production to a good they do not want.