there is no such right to kill another human for no reason or on a whim.
You keep repeating that, but you are clearly in error. There is a right in some jurisdictions, America being one for now, to get a legal abortion without having to provide a reason. Her reasons are nobody's business but her own and those she chooses to welcome into the decision making process.
That isn't a right. That is killing, nothing more.
It's both. Nothing less.
I don't think that you know what a right is. It's not what you prefer to be a right. It's what a society agrees explicitly among itself should be a right, with a mechanism for enforcing it. If it's less than that, you can shout about your rights all you want, but nobody's listening, and others are free to disregard what you proclaim on no authority to be a right.
the latter are morally acceptable while the former isn't nearly so much.
Not by my standards, which are the ones I apply.
You make your moral proclamations like they're objective reality. Others are free to disregard your preferences. I for one don't care what others believe, but rather, what they can convincingly argue or demonstrate. You just keep repeating your claims and preferences, which have no persuasive power.
Doesn't say much about you if you do not value human life above a dogs.
I am well satisfied with my moral philosophy. It has guided me well. I have no need or desire to borrow from yours. It's not that I don't value people enough. It's that you don't value dogs enough.
We are special as we are higher life-forms capable of thoughts and acts normal animals can not. This is not religious, this is science.
Yes, that is religious. My view, which differs from yours, is scientific. Man is one of the products of evolution, a branch of the animal kingdom which produced apes that stand upright, have big brains with speech and a reasoning capacity, are relatively hairless, and are hunters. We're still animals.
The idea that humanity is not a part of the process that produced the other animals, or that that process produced something that transcends the rest of the animal kingdom, is a religious conceit. I don't take my ideas or values from such sources. They're unevolved.
The general disregard for animals is right out of the Christian Bible. I can think of no reason not to treat animals with as much regard and respect as they can use. The ethics of secular humanism derive from the process called rational ethics, or the application of reason and empathy to the problem of appropriate conduct.
Moral theory has advanced considerably since the days when people thought that thunder was the anger of the gods who needing appeasing. Women are no longer considered property, Even in my lifetime, just a few decades ago, adult American women often could not get a credit card, nor check into a motel room with any man but her husband, get a car loan without a co-signer, might not get hired if they were fertile and were considering getting pregnant.
These are also leftover religious sensibilities that are irrational and destructive. We can do better than turn to these ancient precepts, but only by rethinking these matters and removing the ideas that aren't working toward maximizing opportunity and well-being for the greatest number, including the beasts.
Just because something is a law does not make it right.
But it does make it a right, which was the topic. The pregnant woman has the right to have a legal abortion for any reason, even what you call whim. That's what a right is - not what you wish was a right. It's in writing, and the government will enforce that right if need be. If that changes, then the right may be lost.