Iraq was never a democracy. It bounced from monarchy to military rule to one party rule to Hussein's personal dictatorship.

Venezuela had a... let's call it "respectable" democracy since the late 50s. Chavez did it no favors but it didn't completely collapse until Maduro.

If Venezuela recovers and improves, are you willing to fundamentally change your opinion about US interventions?

The issue with regime change is whether there's enough political cohesion in a country's population after a despot / autocrat is removed.

"The opposition" is rarely a large and representative enough group to effect national power transition. (Btw, thanks for flagging that incorrectly as affect, Apple)

Especially in multi-ethnic states, most cohesive national identities are forged through extremely popular singular leaders.

Unfortunately, those are exactly the same leaders external regime-change initiators are wary of (too independent).