Drop dead gorgeous model 1/2 my age is my GF

Sorry for the rant. I want to ask what people think, re. the age difference or a race thing or both? Are the reactions of my Aussie friends and family normal?
We have faced a shit load of moral judgments & racism. I have deleted many friends from Facebook and have told many Aussie friends. & family to F-off.
I once new an Aussie Christian couple, he was 42 and really cool. she was 18 & very hot. Also, my Aunty is 30+ years younger than her late husband.
Why the flying fruit cake are people so against us? One guy posted, Asian slut, monkey whore & gin jockey (deep apologies indigenous brothers for repeating). Another, I only 'F' the Asian slut cos cannot get a white woman. A really close ex-mate (woman) posted, no decent, self respecting white woman will touch my filthy cock again.
Sadly, I have come to think my beloved countrymen are multi-cultural only as far as the front door step. Its ok to have Asian, aboriginal and black friends but now on the fringe.
A gain, sorry for the rant.