Zionism and Nazism are very similar.

It's true that Nazism lacks the religious aspect, and Zionism lacks the pagan aspect.

I hope you can agree that these are aesthetic differences.

Both movements advocate for one ethnicity having the right to live on a particular part of the land, ime. ethonationalism (Nazis: "Blood and soil" vs. Zios: "The chosen people who god promised the land to"), both movements are expansionist (N: "Lebensraum" vs. Z: "Buffer zones" and "Greater Israel"), both movements subjugate another ethnicity that they deem lesser and evil (N: Jews, Black people, Roma, vs. Z: Palestinians, Arabs).

Both movements have commited genocide against the other ethnicities.

So, are Nazis pigs? If they are, then the label fits Zionists as well.