Genealogy / Why are some Polish people dark complected, and others very light [511]

What happened to the original question ?
Poland is a nation, therefore Poles are a Nationality group.
Being Jewish refers to a Religious group.
Racial group originally was a larger group which had similar physical characteristics;
more recently that has become skin color. the problem is there are millions who don't fit into any group: or for their own issues others put them into a different group.

Genealogy / Polish person's average height? [210]

All of my Grandparents were born in Poland. There is a big variety of physical characteristics on both sides of my POL/AM family. Heights range from 4' 11" to 6' 9"

On my Mom's side there has been at least one person who stands out in a group for at least 5 generations. Natural hair color includes blond, red-head and a variety of browns. Eye color includes blue, green, hazel, and brown. Complexion is generally light, but some have darker. There are more left-handed than average.

My Mom's Parents were both short--he was 5' 5", she 5'. He had a darker complexion, brown eyes & very dark brown hair. Babcia was a blue-eyed blonde.

My Dad's Parents--He was tall for his generation--5' 10", blue-eyed platinum blonde.
She was 4' 11", hazel eyes, & very dark brown hair.
So just in my family there is no stereotype.