The ALCU might be confused
According to published reports, a small U.S. town has voted to boycott the purchase of any Nike products based on the disrespectful actions of Colin Kaepernick and those "taking a knee" when the national anthem is played at professional sporting events. According to the ACLU they feel boycotting Nike is some violation of law because Kaepernick is a paid pitchman for Nike. Lawyers everywhere disagree with the ACLU who has been wrong on many occasions.
Just as Kaepernick has the "right" to take a knee, so do consumers including townships have the right to decide what product brands they chose to purchase with personal or tax payer money.