Cults and religion are the same. The only thing that differentiate them is time. If you have a systematic set of illogical beliefs that have been around for a few years or decades or even just one lifetime, it's more likely to be called a cult. Give that group a lot more time and it will be called a religion.
As for your question .... I don't think it's anything the opposite of religion / cult but rather which belief system. I think as humans, we will always come up with some sort of belief system because we will always want to. We're just wired that way.
And to me the best belief system is one where we value one another no matter what, who, where, why or how. That includes honoring, respecting even those who don't believe what you do. A belief system where we honor all life, human, animal and organic. A belief system where we do our best not to harm one another or any life around us.
If we could that, then following a religion wouldn't be so bad because the belief system would be used to actually benefit all life.
Kind of ... I'm Indigenous Canadian and one of the lessons my hunter/trapper father taught me was to respect all animal life, no matter what it is. He taught us that no one should kill any animal unless it was to feed ourselves or use it for our survival. You don't just kill something for nothing.
So when I started driving on highways just over 30 years ago, I'd be a good person and clean up dead animals on the road. I thought it was disrespectful for people to just run over animals until it turned into an organic pancake. But it was constant and just about every drive I took meant I had to clean up something and most times, my passengers didn't appreciate it. Once I picked up a skunk that had been knocked dead ... hit in the head but not squished. I was careful and put it in a garbage bag and threw behind my half ton truck and drove it away to put in the woods somewhere. I stopped not far, picked up the bag and it burst .... INSIDE MY TRUCK BED!!! ... the skunk had 'leaked' or its glands had burst or let go or something and a bit of juice came out of the bag .... I just about gagged and ran away. It took me a month to get rid of that smell and no one wanted to ride with me.
The smell is so strong when you are that close that it will add a stench to your clothes that will take about 20 washes to remove the scent.
Like the other commenter said ... it's road kill. I live in northern Ontario in Canada and all our highways go through a lot of wilderness so we see a lot of animals. When someone accidentally hits a squirrel, fox, raccoon, beaver, porcupine, you see the dead animal but it usually taken aside and forgotten .... people seldom see it because it happens quickly and its forgotten.
But when someone hits a skunk .. it will stink up that section of highway for a week and everyone notices.
In northern Ontario, on average I'll notice at least four or five skunks a summer that have been hit on the highway. It's not on purpose, it's usually accidental, especially at night. When someone hits a fox or raccoon, no one ever notices ... but if they hit a skunk, it will stink up that section of highway for about a week and everyone will notice.
They should rewrite everything every hundred years just to keep up with modern technology and development.
But no matter what system, someone somewhere will always find ways to abuse everything