@jeeprs,
It's a shift to the right because it is a more conservative option. A big shift to the right would sinking the boats.
You are right to be confused though, it's not really a right/left proposition except by association. Generally anything that is the product of small 'L' liberal thinking is considered left, and the opposite is right.
I was taught that fascism was extremely right and communism extremely left. But the real world proved that wrong (Communist China was/is extremely right wing to my way of thinking).
These days I say that the '**** you Jack' mindset is conservative/right wing, and the 'Fair Go' mindset is reformist/radical/leftist.
Perhaps an alternative way of delineating it is to say being right wing means that you think that the more a person is like you (nationality, ethnicity, creed) the more human they are, and the more left wing you are the more you believe we are all equally human. I think that fits with positions on refugees, capital punishment, bigotry, indigenous issues, sexism, etc.