Let me re-state 3 of your points. Do I have it right? I tend to agree.
1) Our Defense will be worse because we lost Belichick.
Compared to 2023, that is the big loss, not the loss of a few weeks of Judon. We will likely get a few weeks of Barmore. We gain Gonzo and Jones. But, yes, the loss of Barmore and Judon makes the Defense much worse in 2024 than if they had played. (There will always be injuries).
2) We should have spent more.
You consider it irrelevant that we will push $35M or so forward, because you don't think that we will do what we should in 2025 and spend to the limit and beyond (through contract structure).
3) We should have signed a top defensive player or two.
Sure, we all rail about LT, but the reality is that we have weaknesses in 2024 and beyond in the front seven. It simply doesn't compute. The best that we could get was Watts and Ximines? Really?