Well, the war you are talking about it is not between the United States and the State of Yemen, but rather a rebel militia within Yemen which is receiving funding from states like Iran, so they can continue their operations in western Yemen and disrupt the navigation of Ships heading towards Israel. The United States considers the Houtis to be terrorists and the USA do not negotiate with Terrorists, they simply get blown up by drone strikes for the sake of freedom and democracy, I guess.
to be more precise the houthi militia are being funded from states like iran, so they HAVE TO cause chaos just to get paid. its like dnt do a job dont get paid. so they wont stop chaos just because the US says so.. the houthis care more about external funding than human lives
the US do no consider normal yemeni people terrorists. just the houthi rebels
the houthi rebels dont consider innocent yemeni people as their sisters or cousins, they consider them their shields and cannon fodder