I see some Brazilian Stalin fans in the Twitter. Nobody supports Imperial Japan.
This is largely an anglosphere thing:
1) White guilt in North America, the UK, and Australia
2) English-speaking Indians who hold favorable views of Imperial Japan because it fought the British Empire and supported Indian independence
2a) Weird misdirected anti-colonialism in other former British colonies
It doesn't surprise me that none of these would show up in the Portuguese-language Internet
I can also confirm this sentiment is nearly non-existent in Australia. It's largely disappeared now with the passing of the war generation but Australia was probably the least forgiving western ally. Our government pushed strongly for Hirohito to be put on trial and for a much harsher American occupation. As late as the 80s trade agreements and the closening of diplomatic relations with Japan was vociferously protested by veterans groups. Unlike America, Australia was not significantly involved in the war in Europe (at least after 1941, we did fight in North Africa and Greece) so the collective memory of the conflict even still mostly focuses on the war against Japan. I remember being taught in school the (probably untrue) claim that Japan intended to invade and colonize Australia. As I said, anti-japanese sentiment today has mostly died out, but this is because most of us acknowledge the Japan of today is a very different country and not because of 'white guilt.' To the extent this sentiment exists it probably is found only in a handful of hyper-online tankies who copy wholesale the rhetoric of American woke twitter.