tar with the same brush – russe traduction

стричь под одну гребёнку (tar (someone) with the same brush : to think that (someone) has the same bad qualities and deserves the same blame or criticism as another person because of being connected or associated with that person in some way It's a shame that when a few people get caught cheating everyone else gets tarred with the same brush. MWALD. Alexander Demidov)