Things do have intrinsic value. The intrinsic value of bitcoin is that it allows you to write to the bitcoin network. That's the only use case bitcoin has on the network. You spend bitcoin to make new UTXOs.
The value of the token is derived from the value of the network. The intrinsic value of the bitcoin network is that it cannot be debased, censored, or confiscated and that anyone with minimum hardware can personally validate it.