(*Not reading further....)
This is relatively minor.
Of course, I would look askance at such cold displays and be disappointed, but I don’t think I’d be “outraged” that there was no real Christmas decor.
Save the outrage for anti-Christian stuff, like not allowing a cross or not allowing Santa at all.
This is relatively minor.
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Broken windows theory. You address the minor stuff and they don’t dare take it major, and you defeat haters before they gain much traction