The long and short of it is that the pledge of allegiance is exactly what it says on the tin; you are pledging that your loyalty is to the flag (by proxy, to the United States). However, as a US citizen, one has a 1st amendment right that is supposed to protect you from being forced by the government to say the pledge (otherwise known as compelled speech). Constitutionally, you cannot be arrested or otherwise punished for not saying the pledge, or for expressing distaste for the pledge, leaving out the "under God" part while reciting the pledge, or even saying that you think the flag is nothing more than a nationalist propaganda symbol.
On a different note, as an American who grew up mindlessly citing the pledge throughout my K-12 years, it was a pretty harsh realization when I learned that this is essentially a kind of indoctrination. I honestly feel a bit gross when I go to my kid's school events and the first thing they do is trot out the flag and start the pledge. I wouldn't be surprised if there was a push to have it removed as a regular thing at public schools in the US (nor would I be surprised at a reactionary response from the "patriots" in our country if there was a movement against the pledge...).
Every once in a while I catch that off-brand Fruity Pebbles (Fruity Dino-Bites!) with marshmallows in it. Just blend that shit up and shoot it directly into my fucking veins please.
This argument that a social media platform not doing evil things also exclusively means it cannot attract an audience in some other way is a false dichotomy.