"Just send them money" implies that we don't use them as a dumping ground for the imperfect/unwanted goods, implying that we do destroy those goods.
If you want to compare this to broken windows, the controversy is: the developed countries produce so much glass that we don't know what to do with it. When we have extra and irregular pieces of glass, we can either melt the extra panes down, or we can just ship boatloads of "free glass" to Africa every week (likely result: Their glass factories will eventually shut down). Doing the former is simply not the same as breaking windows to make work for glaziers as in the analogy you're referencing.
"Just send them money" implies that we don't use them as a dumping ground for the imperfect/unwanted goods, implying that we do destroy those goods.
If you want to compare this to broken windows, the controversy is: the developed countries produce so much glass that we don't know what to do with it. When we have extra and irregular pieces of glass, we can either melt the extra panes down, or we can just ship boatloads of "free glass" to Africa every week (likely result: Their glass factories will eventually shut down). Doing the former is simply not the same as breaking windows to make work for glaziers as in the analogy you're referencing.
You can start if you wish.