Ill take a stab at it: Somalis, Palis, ROP, or all the above.
“The couple, who were both of Portuguese origin and both unemployed”
And yet you may still be right.
I grew up knowing many Portuguese families. They come from strong Catholic backgrounds and none would ever stand by and let a child be mistreated anywhere near this badly. Portuguese, Italian, Spanish, Irish, Scots, Filipino, Asian, Indian -I could go on. NONE of them would have allowed such a thing to happen. It is only the Islamists with their barbaric / uncivilised (nekulturney?) customs that allow such atrocities, especially upon female children.