The German people also believed that they had no choice but to make a war which they believe had been forced on them, and overwhelmingly supported it.

Whether or not there was support for the war on either side is not the point.

Nor is it actually particularly significant what the views of a number of academic historians might be at a particular time. Such things ebb and flow, and it is doubtful whether there is ever any final and unambiguously correct "verdict of history".

The point is that this was was a catastrophe that has continued to have disastrous consequences throughout the last century, and is continuing to do so. Terrible mistakes were made by political and military leaders which contributed to this. How far it it right to see them as guilty or stupid in making their decisions are interesting enough questions, but not particularly significant.