I’d certainly write the constitution differently (why doesn’t it mention welfare for insects, for example?), but I more take it to mean that numerous amendments were required to make it moral, and still many more are needed.
why doesn’t it mention welfare for insects, for example
Because most people do not care about insect welfare. The issue is not ‘rigidity’; no sane amendment process would lead to the constitution mentioning insect welfare.
I’d certainly write the constitution differently (why doesn’t it mention welfare for insects, for example?), but I more take it to mean that numerous amendments were required to make it moral, and still many more are needed.
Because most people do not care about insect welfare. The issue is not ‘rigidity’; no sane amendment process would lead to the constitution mentioning insect welfare.