If Spaniards discovered Australia first

[Laredo]

Would you say Spaniards more likely would've race mixed with the native population from there? And have their own Casta System hierarchy within the colonial period? Just like It happened with all Latin American countries?

[Beowulf]

probably yes but also there are some sources thatthe first europeans that saw Australia were Spanish and Portuguese: https://www.geografiainfinita.com/20...20nueva%20ruta.

or maybe they won't mix to much with the natives,in America the indigoenous were a lot which mixing with the population was much more advantageous while in Australia it is very disperse so we don't know if them would had relvance or the same laws applied for the Natives from america would be also applied for aboriginals.

[Gredos]

no, it would have been as it happened in the regions of America with scarce native population, above and below the 30 and -30 parallels, which would have been repopulated by european population.