In order to Soul Rip in Naruto, you have to be stronger or relative in strength, proven through Hiruzen vs Orochimaru. After sealing a nerfed Hashirama and Tobirama, weakening himself and after being stabbed through the gut for an extended period of time, Hiruzen wasn't able to pull out Orochimaru's soul. Infact, Hiruzen initially pulled out half of it but as he grew weaker He was only able to hold on to Orochimaru's arms.
So, soul Rip in Naruto is relative to the strength an individual has. In addition to this, additional Soul Manipulation Resistance comes from Orochimaru and Hashirama wherein Orochimaru doesn't have the strength, even with his enhanced body, to assert dominance over Hashirama's soul.
(Will bring scans in a bit)
It doesn't matter if Naruto barely resisted a Single Target Soul Rip from Nagato. Nagato is Superior if not Equal to KCM Naruto thus has the strength to Soul Rip him and even then, unlike People who're fodder to him (Shizune for Example), it wasn't instant and what's notable here is that unlike with Orochimaru, Naruto wasn't actively resisting Nagato like Orochimaru was Hiruzen until well after.
So the resistance is innate. Therefore, all in all, Naruto Characters can't be "Reiatsu Crushed", unless it's by comparable or Stronger Characters, but the issue is, "Reiatsu Crush" only works on vastly Weaker Character, not anyone comparable or remotely near someone in terms of Spirit Energy.