considering nearly all commercial blu-rays are protected with AACS (which you have to bypass to rip), what you're doing violates the DMCA. also, there's a growing amount of content from streaming services (netfilx/prime originals) that's not available on blu-ray and is not trivial to rip.
Who cares if it violates the dmca? And honestly it is simply easier to just pirate the content vs ripping it, there are literally no consequences. And yes it is trivial to rip from streaming services.
Even in the US, the dmca is irrelevant to individuals for the most part. You can outright throw the notices in the garbage without consequence. I've been doing that since it was passed. Some were legitimate violations, some were not. Either way the company wasted printing and postage.
Sharing is a form of advertising. If you want to promote a company or product there is no better way then sharing.
I remember seeing a video where a company exec said that they want to sell there product but they also wanted everyone to be using there pirated copy vs another company's application.
Most people won't pirate because it involves work. The people who do sometimes are the trend setters who can encourage others to buy.
Indeed, in some cases even importing (i.e downloading from a foreign server) software to do so is a criminal offence in the UK and carries a potential prison sentence.