None of your other points, regrettable, discomforting and painful though they were, could have caused that surge in excess deaths.
I get that you hated the lockdowns. I’d argue most people did, but that doesn’t preclude the fact that many of the people that hated them also accepted their ‘necessity’. I put that in quotes because the necessity itself may be arguable, but the fact that many people were convinced they were necessary is not.