Asked about how he viewed the last 35 minutes of the game having had time to reflect, Tuchel said he felt “the same way – that we were too passive”.
“If you’re asking if I regret my decision, if this is the question, then I don’t regret my decisions,” he added.
“I felt that the momentum switches in the match. And I tried to help my team…
“I took several decisions, trusting my instinct, my intuition, my experience, trusting my competitiveness, and I took the decision in order to help the team and get the result. We didn’t get the result.
“So I take, of course, the responsibility and for these decisions. I would regret if I didn’t help. I would regret if we didn’t react.”
Tuchel said he was not willing to engage “in this kind of game” over who is to blame.
“No problem,” he said. “This is the deal that you sign up for, but I will not engage.
“For me, there is no-one to blame. If you need someone to blame, I take the responsibility. I’m the head coach.”
Asked why England’s record goalscorer Kane played so deep in the latter stages, he said: “What do you mean? Like in the last 30 minutes?
“Why we defended in a deep block. Well, that’s what you do if you defend in a block. We were not active enough.”
Tuchel said Argentina had “played with a lot of momentum after our goal”.
“They had a lot of offensive changes, and a lot of offensive positions,” the 52-year-old added.
“We could not stop the crosses, and we could not stop the runners into the box.
“So we decided to play a back five, to have more width in the field, to be closer to the guys who cross.
“We just became too passive, and Argentina, by the way, found another gear and they found the total flow.
“We played in the semi-final against the reigning world champions.
“We were 85 minutes 1-0 up. We played against the best player in the world, and we lost 2-1, which is painful.”
Tuchel was asked if he had studied data which showed England’s physical performance levels against Argentina were lower than the DR Congo game in the same stadium earlier in the tournament.
He said “even if we don’t want to admit it because it feels like an excuse”, the Mexico game with 10 men in the altitude of the Azteca Stadium and the heat against Norway in Miami “cost us more than we maybe thought”.
“The players literally gave everything physically [in] every single match. If you see this data drop, there must be a reason behind it, because the motivation was through the roof,” he said.