Answer
Using national symbols for protests against racism can prevent more people from joining the cause.
Step-by-step explanation:
In "The Choice Between Kneeling and Winning" we are presented with the idea that national symbols are very important for social causes. The author states that these symbols were used several times by blacks, women and other social minorities in an efficient manner, since symbols often have more impact than arguments.
Based on this, the author says that it is an interesting attitude for some famous players to use national symbols (such as the national anthem) to protest the position of the president of the republic against racism and police violence against blacks. For the author of the article, this type of protest makes the president's opinion stronger and does not bring any benefit to the black cause, because it makes the president more supportive of the very patriotic people who find the use of national symbols disrespect in protests and thereby support the president and govern the black petition.