Why did MAGA candidates do so well in Arizona but not Georgia?

[Fuzzy Bear Loves Christian Missionaries]

In Georgia, Democrats entered Republican primaries to support Kemp and Raffensberger.

Had Trump gone after Raffensberger, and only Raffensberger, he would have seen Brad go down in the primary.  But he went after Kemp, who (A) had been a Trump supporter and (B) was someone who took the DeSantis line on COVID-19 and was an anti-lockdown Governor.  Kemp had popularity, Perdue was hardly an inspiring candidate, there was no overwhelming reason for a GOP partisan to vote against Kemp, and ordinary GOP voters had enough independence to not jettison a Governor they basically agreed with just because Donald Trump wanted him gone.