Your problem is you don't get the basic 'reason" why pool is failing. And as such, you are wanting to try things that have absolutely nothing to do with WHY fewer people are playing/watching pool these days. I have commented before about how fruitless it is to attempt to fix a problem before you "know" what the exact problem is.
The short version is... Almost all competitive games require aggressive, competitive youngsters to replace the ranks of the aging competitors. These are mostly male, as males tend to start producing higher levels of testosterone at a certain age, which brings a numbers of behaviors to bear, one of those being competitiveness, and a desire to "gain territory". Just like all other mammal males. This basic mammalian drive is what produces competitors for ALL sports/games.
THEREFORE... See all games/sports as competing for young talent. Pre-1995 or so... Not much to do for young males, and commercial lease rates were still low enough to make opening a pool hall affordable. Pool could still pull young males at this time, because there just wasn't a whole lot else to do.
THEN.... Came the competitive video game revolution. The same basic skills are needed for pool and video games.. Muscle memory, hand-eye coordination.. AND, the young males can now just buy a PC or gaming console, and can practice 8 hours a day in the summer if they want.
So... Aspire to be a competitive gamer, and have no more than about $2K cost outlay + monthly fees if on console, and that's it.
OR, get into pool as a teen male. and struggle to find a pool hall that will let you in (not likely, as it is pretty much mandatory to have a liquor license these day to run a successful billiards establishment...), or shell out $8K plus, AND the cost of a house big enough to fit, a tournament quality 9 foot table.
So, there it is. Pool is not failing because random people are just hungering to see MOAR SHOTS, and if only we would show them MOAR SHOTS, then they would all of a sudden just love pool to death, and create another resurgence in the game.. Pool is failing because other competitive games/sports are cannibalizing our young talent, because pool has simply too many barriers to getting good, as compared to competitive video gaming, and becoming social media influencers, etc. The "Color of Money" resurgence in the game was a combination of a bit of a romantic idea of being a modern day "gunslinger", combined with low commercial lease rates, and bored teenage boys with nothing better to do. As soon as something more accessible came along to compete at, combined with rising lease rates, the death knell was sounded.
Note: This is a somewhat uniquely American problem, as many European/Asian countries have economies/population density that can still support many varied competitive hobbies/games/sports.