Marvel Fantasy, moral messaging vs propaganda

Had this discussion in my house. the older generation don't really understand fantasy or appeal of Marvel. I think Marvel uses fantasy violence 2 attract some people but then they implant moral messages and commentary about intel narratives society, relevant commentary about real phenomena through art of Fantasy. Many of the movies delve into motives for war for instance etc. But there is clearly also propaganda as for instance in most recent movie W/ Black Widow focusing on soviet mind control rather than U.S as of yet anyhow. There's also tech reveals in these movies and comics, so what does keeping it under realm of fantasy do? I don't know.