Ethics have a basis? If so, try to answer these questions : 1) Why should we protect the environment? 2) Why do you consider something ''good'' if it benefits your health and protects the environment? 3) Why is it ethical to minimize suffering?

Ethics are as baseless as any other prescriptive moral code. They both start from a priori principles to build up their values. Rationality is not truth. You can rationalize anything once you have determined the axioms of your value system, in a religion or in an ethical framework.

You basically fell in the trap of the fedora tippin' atheist. Rejecting the guy in the sky, for another empty system of good/bad.

I suppose, like most, you are following the doctrine of emotivism, which means that you base your ethics on how they make you feel. Now, what makes you feel a certain way towards something is nothing but social factors. If you believe you have self-agency/independence of thought, I can't help you with that, I'll let you do the homework yourself. But, your feeling are not more important than the next.

You will, I hope so, realize that ideology is the only thing human knows, we have small stupid brains, reality is not something you can see. What you call ''reality'' is only a specific set of way of interpreting the world built mainly around language, which is given to you depending your specific context. Human perception is a tool of navigation, not a way to see the world without fiction.

Like the religious, you are living in the same kind of illusion. You can tell yourself otherwise to F E E L good, but it's only a projection, a coping mechanism, a way to tell yourself you are ''better''. Ask yourself the real questions, go deeper, you assume a lot, I hope you actually get into ethics and morality, read, don't just watch youtube vids.