To be honest, I think it is the opposite: primal is freedom, junk is prison.
Where I live (Denmark), it seems that EVERY celebration must be accompanied with tons of junk (and I mean the junkiest junk like ultra-processed industrial cakes the package label of which would give you pimples and stomach cramps at first glance, candies and sodas, etc). So for me, it is an absolute nogo, I don't care to not be eating like the others (sick) people in the room. If I am asked, I just say I don't eat crap, thank you. People can give me odd looks, I don't give a crap. The freedom is to not fall for group pressure, especially that YOU KNOW that this junk is absolute crap. You are excused if you don't, but you DO know.
For celebrations which I manage myself, I cook and bake everything. People enjoying my stuff NEVER complain and go back home feeling GREAT!
Isn't it crazy that we should celebrate with sick shit food ?? what kind of tradition is that ?? "Oh, you're turning 40! Let's binge on toxins!! Yeah, great idea!"