The point that we are all 'just people', with the same basic rights and obligations is a powerful and liberating idea. No reference which seriously transgresses that norm should be included in the Constitution. Which is just as well, since no reference which transgresses that norm will be included. The Australian public will never vote for it. We should be careful not to mistake media debate and comment for public opinion.
People are clearly reluctant to change the Constitution.
Of the 44 amendment proposals put to the people, only eight have passed. Yet, if a proposal has the support of both sides of politics, they tend to pass. Of the 13 proposals supported by both Prime Minister and Opposition Leader of the day, eight have passed. None have passed without such support. Should also be very careful about handing power over to judges, which adding claims or principles to the Constitution can easily do.