Sorry, I hadn't checked this comm in a bit. Just like Trump supporters, Bolsonaro supporters seem to have their minds shielded from reality by years of imperial and reactionary propaganda. They rightly feel that politicians don't have the people's best interest at heart, but due to the state of the communist movement they are presented no other option in the mainstream other than fascism. Thus, they support Bolsonaro as a negation of politics itself in a childish, counterproductive lash at the ruling class and the political establishment - well, that's what they think it is, in truth we know that the two groups I mentioned are fonder of Bolsonaro than a left-liberal like Lula.
Some of these people aren't completely lost, they know something is wrong with bourgeois democracy, but since only fascism has reached them, that's the answer they go with.

Right now it looks like the Worker's Party is set to win the next election, though it's too early to tell. Even if he lost, bolsonarismo has become a major force in Brazilian electoral politics and the main antagonist to labor, surpassing Macron-type neoliberals. Even if Lula wins it doesn't look like he'll be able to form a government coalition in congress, but I'd say that the revolutionary left is outpacing the fascists in growth (they have stagnated/began to shrink imo) and if it's able to keep it up and use its growing numbers effectively Brazil could see something special happen in the long-term, provided fascism doesn't take over till them.

Also, if you have any questions or want to know more about Brazil don't be shy, I'd be more than happy to help you.