Since when is the US government a charity? Taxes are not optional.
Most major donors contribute to things they can put their name on like buildings (see Stanford campus). It's difficult for even most charities to cover operating costs (i.e. labor) with only donations. Most have to apply for grants or do lots of funny numbers to keep their administration costs (i.e. labor) low.
Most major donors contribute to things they can put their name on like buildings (see Stanford campus). It's difficult for even most charities to cover operating costs (i.e. labor) with only donations. Most have to apply for grants or do lots of funny numbers to keep their administration costs (i.e. labor) low.