TORONTO — Knicks coach David Fizdale staged his longest postgame, locker-room lecture of the season after a 126-98 Thanksgiving Eve blowout loss to Raptors.

Fizdale questioned whether this players trust each other enough on the court and if too much selfishness is taking place. The locker room was closed for more than 16 minutes after the final buzzer Wednesday night.

By coincidence, the Knicks were playing the most selfless team in the NBA. The Raptors overcame an 11-point second-quarter deficit to roast the Knicks at Scotiabank Arena and drop Fizdale’s band to 4-14.

“Message to the team is — trust,’’ Fizdale said. “Right now we’re still fighting that fight to trust each other defensively and offensively. First quarter, you saw the ball move without hesitation. We get to the second quarter, guys were holding the ball too long. They have to trust the easy play and the pass.”

Fizdale wasn’t done.

“Same thing defensively,’’ he added. “If you get beat, you have to trust a guy will be there to protect you and the next guy is going to protect the next guy. It’s something we haven’t done through a full game. We’re constantly fighting for that trust for 48 minutes.”

After the first 18 games last season, the Knicks stood at 4-14, too. But this summer Knicks president Steve Mills spent $74 million in 2019-20 wages on new free agents and added the third pick in the draft, RJ Barrett, without improving the won-loss record.

Marcus Morris, who scored a quiet seven points, was in no mood to parse another defeat in which they fell behind by 34 points in the fourth.

“Not talking,’’ Morris said.

Raptors budding superstar Pascal Siakam ruined them for 31 points in 30 minutes and Toronto (13-4) shot 21 of 41 from beyond the 3-point stripe, placing seven scorers in double-figures.

“I saw a championship ballclub and our team ran against a buzzsaw,’’ Fizdale said. “They understand how to shift a game in its favor when things aren’t going right.”

And a lot is going wrong with the Knicks, with Mills and general manager Scott Perry in attendance.

Wayne Ellington said Fizdale’s mega talk was penetrating.

“We’re still working, still growing. still trying to figure this thing out,’’ Ellington told The Post. “Everything he says to us is meaningful. It was a great message for us after a game like that. Obviously we’re a brand new group. It’s easy for guys to think about themselves. It’s an easy thing to do. We’re NBA players. We have to keep figuring out how to put we before me.’’

Barrett, in his first NBA game in his native Toronto, shot blanks. Playing with an upper-respiratory infection, Barrett finished with 16 points, but was 5 of 17 from the field (2 of 8 from 3-point range) and had four turnovers. He also notched five rebounds, three steals and four assists.

“You got to give their defense credit,’’ Fizdale said. “I love how aggressive he was. He made plays off the dribble, competed extremely hard. That’s not an easy team to come in and drop numbers on.”

The Knicks finished shooting 37 percent. Knicks point guard Dennis Smith Jr. had a rough outing, going 1 of 7 from the field and missing all four of his 3-point attempts.

“Offensive rebounds, transition and they made 21 3s,’’ Randle said in summing up the loss. “We were never able to answer their run.’’

The Knicks’ defense seemed to wear down as the first half carried on. The Knicks lost momentum early in Toronto’s comeback after the Raptors grabbed three offensive rebounds on a possession and wound up with the layup.

The Raptors are 8-0 at home, and no one should count them out of repeating as kings of the Eastern Conference.

“They’re tough,’’ Barrett said of the team he grew up worshipping. “First unit, second unit, third unit. They play tough with grit. Everyone moves the ball. It’s great to go against a team like that.”

Ref;nypost.com