My impression of Texan Republicans is that they aren't that racist? Ultra right-wing yes, but it's not all that big on Mexican bashing (not surprising given Texas is ~1/3 Hispanic) and it doesn't seem as blackphobic as other parts of the South.
Plus Ipswich isn't exactly like any cities in Texas....
There aren't enough Aboriginal Australians in Texas to sustain the sheer 387,440,000 million-mile force of animus that keeps her blood flowing, let alone a campaign of hers for office.
There are some native Americans to hate instead. She also could hate Mexicans as well.
Here any hatred towards Aboriginals feels more like how racists hate black people rather than Native Americans.