The pact included industrial cooperation and dividing up foreign conquests. To simply quote Wikipedia:

"In August of that year [1939], the countries expanded their economic relationship by entering into a Trade and Credit agreement whereby the Soviet Union sent critical raw materials to Germany in exchange for weapons, military technology and civilian machinery. That deal accompanied the Molotov–Ribbentrop Pact, which contained secret protocols dividing central Europe between them, after which both Nazi forces and Soviet forces invaded territories listed within their 'spheres of influence'."

If you're going to argue who the Nazis were, it's tough to beat this article:

https://harpers.org/archive/1941/08/who-goes-nazi/

The reality is the NSDAP had no ideological grounding whichever way. All their public policies were exclusively to get elected. They were populists, nothing else. Within the Nazi party it was as pure a dictatorship as was possible: there were no political discussions happening there. There was a clear order and members owed alegiance to people "above" them and could do whatever they wanted to people "below" them.

Just about the only thing they DID discuss was what made specific people fall above or below others. There was more than a page of rules about which family constituents made people "untermensch". What about 1 Jewish ancestor? What about 5 ancestors with unknown affiliations? What about a nephew that became communist? What about a grandfather who was NSDAP member but had a Jewish/communist/immigrant mistress? What about ...

I mean Germany even sent soldiers to get trained in the URSS in tank usage, while Germany was still pretending to follow the Versailles treaty. And the trade in commodities between the two continued right up until June 1941

They’re not. But the Nazis hating minorities within their own borders doesn’t delineate them.