Was Venom always going to be a difficult character to adapt on screen?

Or at least difficult within the confines of this particular interpretation of Spider-Man? For one thing, you were always going to have to water down the original back story for why Eddie Brock has a grudge against Spider-Man unless you were begging for an R-rated movie.

https://www.reddit.com/r/movies/comments/1gn3gve/comment/lw7xyux/

Also, the story calls for a large amount of set-up, which is already going to be hard to do coherently if this is going to be a movie that also has Sandman and Harry Osborn's Green Goblin as the villains. Again, the original comic book storyline for how Peter Parker got the black suit (which if I'm not mistaken, came during the Secret Wars storyline) would've had to been drastically changed to work in a single film.

I know that in the 1990s Spider-Man animated series, it was explained that John Jameson, J. Jonah Jameson's astronaut son (who ironically, was in Spider-Man 2 but was nowhere to be found in Spider-Man 3) accidentally and unwittingly brought the symbiote back to earth from a space mission.

I'll forever hate Avi Arad for pretty much forcing Sam Raimi to include Venom. The character didn't fit with Raimi's sensibilities. Venom always struck me as a product of '90s edge culture (kind of like other "darker and edgier" characters like Bane in the Batman comics or Doomsday in the Superman comics or Spawn from Venom's co-creator Todd McFarlane) whereas Raimi's was more fond of the classic Stan Lee-Steve Ditko era of the 1960s.