Overall, an intriguing and thoughtful analysis - but it must only remain theoretical. I do t think one can accurately predict the contents of the unconscious of another person - or group of people. Because you don’t really know. You can make a guess - and this is a good one. That’s all.
Why to me you left on the table is that regardless of subconscious motivations, Trump also exploits the trophes of American religion — the mass rallies, the repetitive, simple, emotive language he uses to connect with his followers. The communion of their common bond.