Monaco broke their 4-0 boys at the Stade Louis II in six days – following on by the Champions League humbling at Brugge Club on Tuesday.
Edinson Cavani scored hats poacher scoring while Neymar's penalty had completed the system to put PSG points 13 clear at the top of Ligue 1, with Monaco being kept off the foot of the stalls at just a difference.
Henry, who has lost four and two of the first two games in charge of Monaco, has quoted on the club's website: "There was a difference in quality.
"At the beginning of the game, they were not trivial but at the end there's a pretty easy win for PSG.
" There was a response, no focus on a player loser. Even with all the injuries, we have created opportunities against PSG. We have to stay positive."
Monaco's night was injured to Chadli's Nacer halfway through the first half and the new Belgian Jordi Mboula soon after the break.
They are looking to join the long list of Monaco's injury and former French assault and Henry's Arsenal compromise his frustration in the dead people.
"We're losing two more players," says Henry. "It's just beginning to do a lot. The same situation is always in our games. We lose our games and players."
Neymar Paris St Germain celebrates scoring their fourth goal with Edinson CavaniReuters
Although Monaco can only look at it with envious eyes, their PSG recorded their 13th win of 13 in the French air.
On a night when the crews came under scrutiny, Cavani scored twice within 12 minutes – with both goals reversing the video assistant referee system had first been highlighted for the Outside.
Cavani used her intimidation of prey to finish her over in the 53 minutes while Neymar scored from the spot and location just a bit after an hour, following the incredible Djibril Sidibe movie on the previous star, Kylian Mbappe , Monaco.
PSG coach Thomas Tuchel in quotes on his side's website said: "It's great to have 13 wins in 13 games. It was a great performance.
"We know that Monaco is in a complex situation, with a number of players injured.
"We score two goals quickly, but the first phase was more balanced.
"We have given several opportunities to the opponent. We were more serious in the second half, more structured, and we deserve this victory."