In the graph you can see a 3% drop in the last year or two alone. And the fallout from covid probably hasn't reached membership rolls yet. Culture shift aside, we will likely see a big drop this year as well, since faith needs to be cultivated, and relies heavily on community.

I'm personally holding out for a resurgence, as people see how morally bankrupt our culture has become (e.g., the Emmys viewership dropped almost 50% this year), and how uninterested our elite are in doing anything substantial for the econimic underclass, aside from manipulate them for their own political ends.