I find it ironic that so many people here have the problem with Watchtower because you claim that Watchtower forces you what to think and believe, but have no problem with this. This is a way for a government to tell people what to think and feel, to feel patriotic and show honor for a government. The 49ers QB Kapernick kneeled during the US Anthem because he felt that the government did not show him and other African Americans with respect, so you can't say that only JWs have a problem with the National Anthems around the world. If you were a FARC rebel how would you feel if there was a Columbia law that forced you to sing the Columbian Anthem. How about the Basque Separatists feel about singing Spain's Anthem.
In the US, Justice Jackson wrote "[t]hose who begin coercive elimination of dissent soon find themselves exterminating dissenters. Compulsory unification of opinion achieves only the unanimity of the graveyard." This was after he gave evidence that such unity is a futile thing when it comes to patriotism.
He goes on to eloquently stated: "no official, high or petty, can prescribe what shall be orthodox in politics, nationalism, religion, or other matters of opinion or force citizens to confess by word or act their faith therein."