Express the extent someone goes in order to achieve something; 'to the point of', 'even', 'so far as to'.
Long explanation:
The ~てまで grammar point is used to convey the extent someone goes to achieve something, highlighting the action one takes or the sacrifice one makes for a certain purpose. It can be translated as 'to the point of', 'even', or 'so far as to' in English. It can be used with verbs, but cannot be used with adjectives or nouns.