Sikhs do get a lot of grief from people who assume that anyone wearing a turban is a muslim.
“Lot of Grief”
I’m inclined to believe “occasional” grief.
I’ll guess all American school children have been routinely lectured on the Sikh-Muslim distinction since 9-11.
I’ll guess that many American parents - white parents, anyway - still teach their children it is morally wrong to blame strangers for sins that were committed by other people who might look like them or dress the same way.