beside the point
Also, beside the mark or question. Irrelevant, off the subject. For example, Whether you had insurance is beside the point; the accident is your fault. These terms came into common use in the mid-1800s. Also see neither here nor there.
Moot Point vs. Mute PointYou may have heard coworkers or acquaintances refer to an inconsequential or irrelevant point as a moot point, or maybe you’ve heard mute point instead. Fans of the TV show Friends may have heard a third variation: moo point (because, according to Joey, a cow’s opinion doesn’t matter). But which expression is correct, and what exactly does it mean? The correct phrase is moot point. …
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.