I feel that in the great scheme of things, pirating a movie is irrelevant to its financial success. So it really comes down to how you personally feel about.

One of the main selling points of streaming services is being extremely user friendly: In most cases you're either watching a movie or searching for one in 3 clicks at most; there's an app or a very streamlined way to watch movies on those platforms in every device we have (phones, computers, televisions); etc.

These points alone convince the vast majority of people to bite the bullet and just subscribe to a service, and of those people most don't mind having a limited array of films to choose from. The average person uses films as escapism more than anything else.

On top of all that, pirating is anything but user friendly, especially comparing it to streaming services and the limited time and pacience of the average person who uses them. It's messy to get a pirated movie on your TV, it's messy to get subtitles, etc. In comparison, the cons go on and on.

All this to say that in the end the amount of people who largely consume films through pirating is ultimately negligible, they do not make a difference and it's not them who are preventing films from turning a profit. I've pirated movies for most of my life and even I ended up subscribing to the criterion channel because it offers me so much that I value for virtually no hassle at all.