A lot of Sikhs come from northern India which is actually full of some very Caucasian looking folks.
From my limited knowledge just about all in South India are dark looking while Northern India and Pakistan and Punjab has some really white skinned folks like this mob mugged Sikh man. But dark ones too in Northern India and people inbetween
There are a fair number of white people of European ancestry who have converted to the Sikh religion. It’s a demanding faith, but they are good solid citizens and I would be happy to have more come.