To OzSpen
The 'preamble' is not an operational section of the Constitution. The reference to Almighty God was included by Protestant groups from the states, prior to the passing of the Act. It was approved by the National Australasian Convention, which met from 1897 to 1898, which you will know was prior to the enactment.
The difference between secular and atheist should be clear to anyone with a dictionary. Secular attempts to separate church and state. Atheistic means no belief in God. There is no mention of outlawing God, anywhere.
The article in question concentrates on the negative effects of Kevin Andrews' actions, in outlawing assisted suicide in certain jurisdictions. It is an example of a legislator using his platform, and his position, to impose his religious beliefs on citizens he did not represent. I presume he did it to save his 'immortal soul'. Who knows? It did not create a benefit for the people who wished to use the option.
There is no hatred, no rant, just why did he do it? He put the cause for assisted euthanasia back 20 years. How do you feel about that?

This essay describes the difference between traditional back-to-the-past religious true believers and those of a more secular persuasion. It begins by pointing out that conventional religiosity is not about or based upon God, or Truth & Reality
http://www.beezone.com/da_publications/noface.html
This essay described the narcissistic nature of such religionists, and everyone else too
http://www.dabase.org/up-1-6.htm

And doesnt the fact so many back-to-the-past "conservative" Christians support the Trumpenfuhrer provide in-your-face proof of how decadent such religion has inevitably become.

ateday,

I don't know anything about you of course, but all people I've know who lump man in with animals have been, to put it politely, very odd bods indeed, usually lacking the social skills to form sold relationships with other people. You might be different, but I can speak only as I find in real life. I am pleased to say that the religious people I know are well adjusted when it comes to the differences between man and beast.

Kevin Andrews acted in good faith in moving the private member’s bill subsequently passed in the Australian parliament. Unlike the writer, he acknowledged that: human suffering is part of human life; assisted suicide is devoid of dignity; it is unethical for a doctor to prescribe or administer life-ending drugs; and it is inhumane of relatives to coerce a dying person into assisted suicide.

OzSpen ...

Whose God ?

Christian , Muslim , Jewish or just the Flying Spaghetti Monster ... or none of the above .

May I chose...... ?

assisted suicide is devoid of dignity;
Raycom,
what about COVID-19 assisted, courtesy of the World travelling junkies who brought it to us, dignified ?
Seeing my neighbour presently vegetating whilst the the Hospital makes him "as comfortable as possible' doesn't really smack of dignity !