Some people believe that the government should not spend money on international aid when they have their own disadvantaged people like the homeless and unemployed To what extent do you agree or disagree

In this day and age, some people claim that when the country has unlucky people such as homeless or disabled people, the government should not donate to international aid. I'm afraid I have to disagree with the argument above because foreign aid enhances solidarity among nations and symbolizes human decency.
Firstly, spending money for helping other countries could improve their relationships and can open many doors of opportunities in trading. Case in point, nowadays,