Your own link directly contradicts your statement. He clearly says he wants to increase the quality of life of indigenous people.
But governing Brazil is no easy matter, he concluded. “It is difficult to be president of Brazil because it is a president that has less authority,”
What Bolsonaro thinks or says has no immediate effect on what has been going on in Amazon for decades. It's easy to blame him, but then... what do we do? More laws? Who's enforcing them?
But the point is, that this president actions so far, did not help the amazonas, so how would given him more power, not harm things even more?