Who on earth are the 'settlers'? It sounds like something from The walking dead !!!!
This young woman was a tragic victim. I've seen photos of her. She wasn't murdered because she was native. She looked like a young white woman. She was murdered because a couple of  greedy thugs needed to get rid of her. This could have happened to any male or female in the same situation.
I do not believe that most murders of native women happen in cities. I think most happen on reserve where violence occurs between men & women at a higher rate than is usual off reserve.
Many young people of both sexes flee reserves for the cities where not all stories end well. 
I do not believe that the BC murderer of 50 women was looking for native women as victims. I believe he was centered on prostitutes. Tragically, too many aboriginal women end up in drug addiction & prostitution & become easy prey.