The same logic does work on a 3 year old. A parent is not forced to feed it and can have someone remove it. They just don't call it abortion. https://adoption.com/how-to-give-a-child-up-for-adoption/
Maybe some day a fetus can be removed without killing it, but 3 year olds already have that ability.
make install typically also handles copying things like libraries, shared assets, and docs as needed, but yeah precompiled software is usually a tar... or loading a downloaded package file into the package manager.