A starting point for this view is that volunteering isn’t free for the charity you want to help: https://forum.effectivealtruism.org/posts/6uXZc2QqHXsHKaLy9/volunteering-isn-t-free
This Guardian article gives an overview of the most common criticisms of volunteering overseas, including links to articles that go into more depth: https://www.theguardian.com/news/2018/sep/13/the-business-of-voluntourism-do-western-do-gooders-actually-do-harm
A starting point for this view is that volunteering isn’t free for the charity you want to help: https://forum.effectivealtruism.org/posts/6uXZc2QqHXsHKaLy9/volunteering-isn-t-free
This Guardian article gives an overview of the most common criticisms of volunteering overseas, including links to articles that go into more depth: https://www.theguardian.com/news/2018/sep/13/the-business-of-voluntourism-do-western-do-gooders-actually-do-harm