“but dont we do that every Shabbos? ”
Some of of have family that dont live walking distance, and some of us have family who dont drive on shabbos. So no we dont all get together every shabbos
Also your history lesson leaves a bit to be desired. Especially the bit about Kennedy coming back from the dead almost a week after his Nov 22 1963 assassination to celebrate Thanksgiving on November 28 1963.
(you probably meant Lincoln in 1863