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That crosses into personal attack. Please don't. Please do follow the HN guidelines: https://news.ycombinator.com/newsguidelines.html.
choosing one problem over another doesn't say much to the person's priorities; perhaps they just thought they'd have more impact in that field.
Furthermore, that attitude drives people away from philanthropic work by alienating them about what image their proposed good deed generates.
Just do good, any way you find.
In a similar vein, I volunteer with a pigeon and dove rescue organization, and it's no secret that businesses install spikes on eaves and ledges to deter birds too. Although it always makes me sad to see them, I can understand and appreciate why they do it.