Why the Anglo-Japanese Alliance would not cause an Anglo-American war

Could the Anglo-Japanese Alliance have led to war between Britain and the United States in the 1920s?

No; the two powers lacked a convincing motive for war, and Britain was already looking for a politically acceptable way to distance itself from Japan.

Neither Britain nor the United States had a persuasive reason to seek war against the other. Trade and Canada’s self-governing status further weaken a conquest rationale. A plausible war would require a profound political transformation, such as an aggressively ideological government, rather than a routine diplomatic disagreement. Britain was already uneasy about Japan and could have allowed the Anglo-Japanese Alliance to lapse through the League of Nations or another diplomatic device.