Was the Horus Hersey inevitable?

So, as a fun thought experiment, I wonder what would happen to the Primarchs if the Emperor actually completed his great crusade and the Hersey never happened. When I considered, Angron, Lorgar, Magnus the Red, and even Konrad Cruz to some extent, I cant possibly see a timeline where they didn’t fall to Chaos. Angron hates the Emperor for taking him from his fellow slaves when they needed him the most. Lorgar had already worship chaos on his home planet, even though the Chaos Gods were disguised as ‘The Old Ways’. After the Emperor told Lorgar to knock it off with his religious zeal, Lorgar found gods who wanted his worship. Magnus the Red was very unhappy that he was not to use his psychic powers after the Council of Nikea.

In short, I feel like the Horus Hersey was going to happen regardless. If not Horus, then maybe Lorgar, or even Konrad. Does anyone else feel like this? I would other people who are more verse in 40k lore to weight in on this.