How can I say for example:
Individual retailers run out of business when a big fish came to town. So they had accepted that they cannot compete and closed their stores.
In the novel To Kill A Mockingbird, Tom Robinson finally gave in, even though he was innocent. Because the witnesses were against him, he did not oppose the charges (out of desperation).
So I think there may be a word perfect for this. 'yield' is closest that comes to my mind.