The nature of our evolved brain prioritizes those proximate; I'm unclear of an argument why helping these people is superior, especially when you can make a bigger difference, more cheaply, by helping people in poorer countries.
> Do what you will there is going to be some benevolence, as well as some malice, in your patient‘s soul. The great thing is to direct the malice to his immediate neighbours whom he meets every day and to thrust his benevolence out to the remote circumference, to people he does not know. The malice thus becomes wholly real and the benevolence largely imaginary.
My personal view is help your local people first (no matter where you are) and others next. If you want to do good somewhere else the best way to do it is not via feelgood “remittances” but by going there and putting in the hard work, hiring locals, teaching locals, etc., so they may become self sufficient and not need ‘charity’.