I don't think anyone thinks that. As far as I am concerned, this is our window, and should both add another IF AND trade for a #2.
But one counter-point to windows, I think some fans have unrealistic expectations and think every year could be our year, if only we spent more. We were a bad team from 2020-2024, despite getting a little lucky in 2021. Adding big FAs to weak teams with no pitching never works.
Past that, while I would still decline on contracts like Alonso, we should certainly be spending.