A film's diversity is extremely helpful because everyone can contribute their ideas when a variety of people are working on it. A group of people who think differently can share and mix ideas to create a great film, rather than having only similar people involved who think alike.
In the past, women were not allowed to vote and express their opinions, which prevented all of us from sharing our perspectives, opinions, and ideas.
Another example of not being diverse enough is when world leaders were telling children to stay away from climate change and just let adults handle it. However, some brave individuals, like Greta Thunberg, stood up and showed that we all care about climate change too. We can produce creative ideas that no one else could possibly think of.
Superhero movies tend to feature white men as most of the heroes, and I don't think this is a positive thing; I think it's not fair. Despite the fact that Marvel films seem to show the same types of people throughout, I don't feel represented in them. The movies are mostly filled with white men, not much women, and not much ethnic minorities. There is something unfair about this.
In my opinion, I think this is why diversity is more significant than representation.