The phrase "laid at one door" typically means to attribute blame or responsibility to a specific person or group. Antonyms for this phrase could include "shared responsibility," "diffused blame," or "collective culpability." These antonyms suggest that the responsibility or blame is spread across multiple individuals or groups, rather than being placed solely on one person or entity. Additionally, other antonyms might include phrases that imply a lack of accountability, such as "absolved of responsibility," "exonerated," or "innocent." Overall, antonyms for "laid at one door" emphasize the importance of considering multiple perspectives and factors when assigning blame or responsibility.