I find the fact that you’ve elevated the person in your AV (a white woman) to martyr status but you’re making excuses for racial bias a bit hypocritical.
Just noticed that two people actually liked this comment. Wow. I don't tend to reply to inflammatory posts as it just seems a waste of time but maybe some demand you have to.
First, I didn't support Estelle because she was white.
Second, I didn't support her because of some martyr status you're implying.
I supported her because she was a character I found interesting, the storyline as it developed was her against most of the house, and I didn't find some of these other people likeable, but they were 'white' too. Estelle also got along with Ava who wasn't white.
I don't have to judge people on whether they are likeable or dislikeable based on skin colour (unlike some people, and there's no doubt it works both ways, not just with white people). I can separate behaviour from external appearance. And I also have reason to do this from personal experience, which you know nothing about anyway.
I've actually seen excuses made for bad behaviour from some HMs who aren't 'white' in the past, not just excuses for white ones.
When there are obvious racial insult remarks made such as on the US season recently, that oversteps the mark and that's obvious. But you often do see divisions and black people normally group together on US shows too, it's hardly one-sided. We know nothing about racial remarks on this Australian season as far as I know.