After 5000 years the ethical question is still not resolved. The seriousness of the offense is also still not resolved. The Bible is a lot of help, mentioning a fine to be paid to the father.
You misrepresent the text.
The passage in question refers to an accidental abortion caused in a scuffle.
The Bible does not even discuss the abomination of intentionally causing an abortion on purpose.
That would fall under the Biblical injunction against killing others in general.