there is no way to tell if they are for bolsonaro, that appears to be a market place, it does have the lula 13 logo in there, its possible is one of theirs, or a fight in a party can't discont if they are from the right by the way they dress, because bolsonaro is just that popular the only that don't endorce him are bandits, the left, people fooled by the media, and those that don't have a choice, like the ones that are voting under threat to vote Lula.