If it helps I didn't eat any of that stuff when I grew up in the US - my Mom stopped serving sweet potatoes because no one ate them -- and pumpkin pie has never been at the top of my list. Add to the fact that I am vegetarian so turkey is a no-no and I am a pretty bad American myself!
We will have our T-day dinner on Sunday, and I suspect LO will not care for most of it. But potatoes are usually high on the OK list and I am making a salad with his favorite beans (veggie kids are funny like that). DH is making the turkey and I am pretty sure LO won't touch the pies, pecan or pumpkin, because he has turned down every other kinds of pies we have offered in the past.
And for what it is worth, potatoes were not a hit here either until they became a big deal at dagis.