たところで

たところで is used to express that even if something happens (typically something that would influence the situation), the expected change does not occur and the outcome remains unaffected. It often conveys futility, resignation, or a sense that the following clause will not change despite the preceding action. It has a stronger sense of inevitability or disbelief than the more neutral ても. Use it when you want to emphasize that the action will not lead to a meaningful change.