you can't fight City Hall

Proverb

(chiefly US) Nothing can be done to change the situation, because it is a governmental decision.

Japanese Meaning

役所や行政機関の決定に逆らっても意味がなく、状況を変えられない。 / 公共の機関、特に市役所のような行政に対して抵抗しても無駄である。

I considered appealing the zoning board's ruling, but my lawyer warned me that you can't fight City Hall.

区画整理委員会の決定に異議を申し立てようと考えたが、弁護士に行政の決定はどうにもならないと注意された。

Sense（1）

(chiefly US) Nothing can be done to change the situation, because it is a governmental decision.

I see they're going to build the airport after all. I suppose you can't fight City Hall.