“Bolso shows all signs of fascism, as do his supporters,” the murdered British journalist Dom Phillips told me before his death. “His sons are all more extreme if anything.”

These words were written in 2018 by the Guardian contributor shortly before the election of the far-right former army captain Jair Bolsonaro as president of Brazil – a prospect that Dom viewed with dread.

As he predicted back then, this would lead to more mortalities, more destruction of the Amazon rainforest and more danger for journalists. His own life and death were to prove the prescience of this foresight.

Dom was killed four years ago alongside the Brazilian indigenous expert Bruno Pereira, but his views feel alarmingly relevant once more as Brazil braces for a presidential runoff this Sunday in which a member of the far-right Bolsonaro clan is once more a favourite to win – despite all the dangers that poses to the environment and those who seek to protect it.

Polls suggest Flávio Bolsonaro – the son of Jair Bolsonaro – is…