I’d say it’s about a lovely utopia where everyone is equal, money and poverty are gone and progression of humanity itself became the main driving force of everyone.

Besides that it’s about many encounteers with new species, discoveries, ethical and moral questions that are (tried to be) solved for the good of everyone. It’s conversation, not conflict. It’s discovery, not extinction. It’s fairness, not exploitation. Et cetera.

And I’d counter your argumrnt. There always is some looming threat. Voyager has a gazillion of enemies, the ever hanging threat of never coming back home and being stranded for good. TNG had…well…the Borgs? Sure, there are many soap-opera-moments, like the sherlock Holmes holodeck filler-episodes, but they’re not defining elements I’d say.

Star wars is like a western in space. Pew pew instead of bang bang. No wonder it’s so much more loved than trek.