I don't want to engage too much with this because it's pretty far off topic, but I disagree. The trailer for one sci-fi movie not doing well is nor evidence that original films aren't popular. That is highly anecdotal. Films based on IP just make up a much, much larger share of the overall marketplace than they did in the past.
Alita did poorly and was based on unknown IP... well Dune did well and was based on unknown IP. So what's your point..? And now are you saying that in order to be popular, films have to be tied not only to existing IP but also POPULAR existing IP? Wow, so essentially it is only possible for films to be popular if tie in to one of like, 10 or so extremely well known franchises. If that is the case then the entertainment industry is truly dead.