SAN FRANCISCO – In the month since the Warriors acquired Kristaps Porziis, the initial muted optimism has completely dissipated, the team is clinging to hope of his return, the fan base is descending into apathy, and the rest of the season is a dense fog of futility.Multiple factors have taken the Warriors to this gloom, beginning with Jimmy Butler III’s season-ending torn ACL, followed by Stephen Curry’s “runner’s knee” affliction, followed by rampant speculation that leaves Draymond Green confused – at the very least.Porziis was to, in theory, offer a modicum of light. At 7-foot-3, he has the length the Warriors haven’t had since the glory days. His shooting would stretch the floor on offense, and his aptitude defense would, in theory, free Green to wreck the sets of opponents.The 7-foot-3 Latvian would not be a cure but perhaps a tonic for a reeling roster. Maybe Porziis could boost the Warriors in ways Jonathan Kuminga and Buddy Hield, the two players Golden State sent to Atlanta in exchange, could not.The team’s vision was profoundly conditional. Porziis has an alarming history of injuries and illnesses, so he comes with...