Streaming killed theater because experience of streaming is just overall better then experience of going to the theater. There I said it.
I have noise control. I can pause it. If I am watching alone I can rewind a scene. I watch when I want and I dont have to go to the mall for it. And it is massively cheaper.
If more of us watch, we can talk to esch other or comment things. Or be silent and not disturbed by somebody else making noise.
Ah yes. I really enjoy watching Dune (or Openheimer, or even less bombastic movies) on my 65" TV with two rather tiny speakers [1].
Streaming killed theaters because movie advertisement basically stopped (the lesser problem), and movies are immediately released on streaming platforms (the bigger problem). Why go to a theater when it will be released on Netflix/Hulu/Amazon within a week or two?
Movies used to get several weeks (sometimes months) of theatrical runs, and then there was at least a 90 day window (often longer) before home releases on VHS/DVD/BluRay. Now theaters are fighting for at least a 45-day window.
[1] Well, a 2015-ish Sonos soundbar and two IKEA Sonos speakers.