split hairs over differences

Translations
заниматься пустяками
Let's not split hairs over differences and focus on the main issue.
Давайте не заниматься пустяками и сосредоточимся на главной проблеме.
Definitions
To argue or focus on very small, unimportant differences or details, often unnecessarily or excessively.
Words
difference

noun
разница
hair

noun
волосы
split

verb
разделить