Don't get me wrong, he is very charismatic and well spoken, and his image represents hope for millions of people in this country - he would also never accept being a vassal of the U.S. the way that we are now - but he knows how to use his influence very well for his own benefit - And his charismatic image has brought along a quasi-religious fanbase among his biggest supporters. But the cult of personality that surrounds him makes his political party very dependent on him. His replacement on the october elections, for instance, former mayor of SP fernando haddad was visiting him every monday during the campaign to gather advice, something that was very well exploited by bolsonaro during the elections (A party heavily tainted by corruption scandals that has their presidential candidate visit a man that's supposedly in jail for corruption every week makes it very easy for bolsonaro to take over the "white knight vs corruption" role in people's minds).
As for manufacturing and high tech stuff, it's hard to say mainly because of what you'd get from the theory of dependence - We had our natural resources taken early from the colonial age, and even the ones that we still have today (pré-sal for instance) we don't have the tech to fully exploit ourselves, so we have to sell it at a cheap price for the countries that do have that tech and then buy it back so we can use it. So agriculture is a very important aspect for us, but being dependent on it to the point where we're killing whatever's left of our amazon just to service foreign companies and rich businessmen is basically admitting that we're worth nothing more than being a puppet state to the big dogs. BTW are you really dutch? do you study political sciences or something? never saw an european person know that much about south american history and politics