I think that the problem here is not agreeing on whether this is awful. It's already pretty clear that it is.
However, other countries cannot intervene. Brazilian borders are Brazilian, any other country that wants to help needs to be authorised by Brazilian authorities.
The real problem here is that Brazil's leaders are awful and there's nothing that can be done in regards to that. It's only possible to protest and fight against them in a legal manner.
Romanticizing revolution is ineffective. It's not only extremely hard but also infeasible to destroy all power structures already in place.
I count the parent, and a couple more replying with something-must-be-done answers at the suggestion that the territory be forcefully or otherwise removed from Brazilian sovereignty.
There are other comments in other sub-threads.
Also, this pretext isn't a new idea, and there's heavyweight international support for it.
“Contrary to what Brazilians think, the Amazon is not their property, it belongs to all of us,” Al Gore, then a senator, said in 1989.
The Latin-American Bishops Conference denounced this back in 2007:
The growing assault on the environment may serve as a pretext for proposals to internationalize the Amazon, which only serve the economic interests of transnational corporations. Pan-Amazon society is multiethnic, multicultural, and multireligious. The dispute over the occupation of the land is intensifying more and more. The traditional communities of the region want their lands to be recognized and legalized.
However, other countries cannot intervene. Brazilian borders are Brazilian, any other country that wants to help needs to be authorised by Brazilian authorities.
The real problem here is that Brazil's leaders are awful and there's nothing that can be done in regards to that. It's only possible to protest and fight against them in a legal manner.
Romanticizing revolution is ineffective. It's not only extremely hard but also infeasible to destroy all power structures already in place.