1. Flatten Kharg
2. Flatten a dozen roads critical to transportation infrastructure
3. Continue the blockade
4. Stonewall peace attempts
5. Wait 5-6 weeks and win
The Trump administration isn't doing that because they're trying to avoid another generation unconditionally hating the US again. Having enemies that blindly hate you is how you get into Russia's situation where even an outright victory will result in IRA-style Ukrainian terrorist groups.