I'd argue, as would other historians, that Germany was losing the war in 1942 depending on when in 1942 you're talking about.
They'd lost the chance to invade England when they let the BEF escape from Dunkirk.
They'd lost the Battle of Britain.
They had been stopped from taking Moscow in December 1941. Reading accounts of German generals they knew they'd made a huge mistake in invading Russia.
In 1942 they lost at El Alamein, Stalingrad and in North Africa.
They lost when they declared war on the US. Hitler was blind to the fact that Japan wasn’t going to help them against the Russians.
It was about 10-days after the early summer meeting that decided the fate of the concentration camps. Germany’s fortune’s changed the following week. I used to be amazed how a non-combat decision could possibly be the force behind the unraveling of the war. To me, this seems to have been God’s hand. There are a couple of movies on that meeting.