Slaven Bilic says it hurts that a minority of troublemakers marred the first time the London Stadium felt like "home" for West Ham.
The Hammers are threatening to ban as many as 200 supporters after disturbances broke out during the final moments of Wednesday night's EFL Cup win over Chelsea.
Bilic made his feelings plain after the game and was reluctant to revisit the trouble at his press conference ahead of the Super Sunday trip to Everton.
The West Ham manager was clearly frustrated that what felt like a landmark night in the club's new stadium had been overshadowed.
"Don't get me wrong," he said, "but we really felt at home. Everything we were talking about before the game - 'Is it like home? Is it like the Boleyn Ground was?' - we really felt the crowd behind us.
"Of course [it hurts]. The club doesn't deserve it, the players don't deserve it, the fans don't deserve it - the big majority of them."
Bilic refused to take further questions on the subject, describing himself as "a football manager, not a police officer or whatever."
And he was keen to talk football, specifically the upturn in his side's form since Cheikhou Kouyate was dropped back to play as a third centre-half.
The new formation yielded Premier League wins over Crystal Palace and Sunderland before the Chelsea game, and Bilic said: "We changed the system a bit. Okay, it's important, especially when the results come, but it's more about the players' movement.
"Kouyate helped to stabilise the defence and also helps us to create from the back."