Most of the godless people I meet today (including agnostics and atheists in that) consider science and choice as the pillars of reality.
I would broadly agree with the science portion of that. However, I don't really know what you mean by choice.
I've tried to respond to your main points, but I keep running into the "choice" problem. Your whole post is founded on this idea that atheists consider choice as a "pillar of reality". I don't really agree with that and I don't really know what you mean by that.
I have 3 main issues with this godless understanding of choice.
1) It seems to contradict the scientific appraisal of reality as being somehow determined by environment, evolution and circumstance.
Pure scientific determinism was abandoned a long time ago. I don't think any scientist today anymore agrees with a
pure clockwork universe. It's been shown to be wrong.
You may be misunderstanding the whole choice thing.
Most progressives (who also often happen to be irreligious) do not hold up "choice" as the pillar, they hold up "non-judgement" and "mutual respect" as the pillars. Whether it is a choice or not is irrelevant. In fact, many of the "don't judge" arguments are born from the idea that these "moral choices" are not choices at all. For example, many people argue that transgenderism and homosexuality are biologically-determined and are emphatically
not choices. If you ascribe to this view then it becomes awfully difficult to judge someone for being homosexual: it's like judging them for being black or having red hair.
The social sciences (sociology and psychology) have never claimed to be deterministic sciences. The best they can show is that, given a set of cultural, biological, and environmental influences, an individual may be
predisposed to a certain type of behaviour. For example, if you grow up in a home where neither of your parents work or show any strong work ethic, then you are
predisposed to have a poor work ethic. You are still
able to choose to work hard. There is no deterministic force causing you to be
unable to work hard.
2) It is rather selective in what it chooses e.g. the mother choice of her own personal convenience over that of the life of her child.
Abortion is a really sticky, complex moral issue because it is actually two competing moral issues wrapped into one. There really isn't any catch-all moral rule that can be applied to abortion in my opinion. Also, it is worth keeping in mind that, I think both pro-life and pro-choice people can agree: a world with fewer abortions is a better one. It is just that the pro-life people have decided that the best way to achieve this goal is by
restricting abortions (or making them full-on
illegal) while pro-choice people have decided that the best way to achieve this goal is by providing free/subsidized birth control, counselling services, family planning centers, etc.
As far as I know, no one
wants an abortion. The long term goal is not
more abortions. No one has a baby girl and dreams that one day she will get knocked up at 16 and have to decide whether to have an abortion or not.
Do you have another example of the selective choosing other than abortion?
3) It has no ultimate authoritative foundation that does not change.
No it does not. Some variant of the Golden Rule appears in nearly all cultures and has survived through thousands of years of civilization and has been upheld by most major moral teachers. Seems about as close as we are going to get.