Polls taken between Pearl Harbour and the declaration of war by Germany. I've seen them been cited to you on this forum and their a lot more evidence then anything you have provided.
There were extreme fears in both the US and Britain that Germany would not declare war,
There were fears, but no evidence to indicate that they were extreme or even valid.
The US cannot up and declare war for no reason and they won't have one in 1942-43 simply due to being unable to afford to send the British any transport shipping due to the need for the Pacific Theater, as they will lack British shipping capacity to supplement their own.
It seems you are also forgetting that Japan will be at war Britain as well as the US, given that the whole point of attacking Pearl Harbour was to get the US Pacific Fleet out of the way so the Japanese could seize all those American, Dutch, and
British colonies in South East Asia. The US being allies with the British in the Pacific will is another factor that will push the US towards war with Germany.
US ships couldn't be used in warzones it wasn't participating in,
Based on what? The US was already helping escort British convoys IOTL well before Pearl Harbour occurred. There is literally nothing in the way stopping them from doing something like that ITTL.
I didn't say the offensive would stop between the 16th and 30th; it was already going by then so it couldn't really be affected by the political situation in Berlin; from November-December it could be, which is when the changes would happen.
Oh, so then the Germans exhaust themselves as per IOTL
Stalin was trying to break the Germans everywhere, so just sitting still doesn't mean he won't try and break the lines around Leningrad;
Incorrect: Stalin tried to break the Germans everywhere
after the success of the initial Soviet Moscow counter-offensive convinced him the Germans were on the verge of collapse. If the initial offensives do not succeed, Stalin does not get that impression and has much less reason to press the attack.
The Soviet forces saved from November-December ITTL will not be much of a savings compared to what Germany lost relatively in the process,
Glantz estimates that the Soviets took 680,000 casualties during the defence phase of the Battle for Moscow. Of those, probably somewhere around 200,000 were lost during November.
An additional 200,000 troops with an extra month to refit and train is hardly "not much of a savings".
nor worth as much as the time Germany gains in digging in further back and being prepared for a Soviet offensive;
And the Soviets gain time to reconnoiter the German positions, plan their attacks, and stockpile supplies.
Having additional time goes both ways.
Hard to prove; most of the claims that Hitler was right to give the order to stand fast comes from his toadies at OKW.
And a number of historians looking at the state of the German panzer and motorized forces at the time. Including Glantz, a quote of whom you just cited.
There were a lot of calls to stop the offensive in November, but Hitler didn't ultimately listen.
No, no there really were not. Some people claim after the fact that they called for the offensive to halt, but failed to provide any evidence that they in fact did so.