Copyright has always been a stupid law in the digital age. Copying is an essential part of many processes. The focus on individual copies has been nonsense for decades when the real focus even for those short term licenses (and I agree with you there) should be who is allowed to use the content and for what purpose (e.g. public showing to large crowds might be more expensive than common friend or family groups at home). Also, pretty much anything about copy protection is complete nonsense in the current laws.

We also desperately need to prevent companies from using that monopoly to prevent older works from being available by having the copyright and not publishing the work anymore since this is killing our cultural history.

Honestly, if they all stopped trying to get more money or power at the point where they have all the women and luxuries they could ever want it would be a vast improvement over the status quo at this point.

They all operate under the same laws in any given area. And neither respect your privacy if not forced by laws that are actually enforced.

Who says that they would argue that they are not harmful anywhere else? Remember, the bible used to be only read by priests in Latin and interpreted to the masses and many governments would love to have less transparency as you can see in their opposition to freedom of information type initiatives.

If they addressed the general problem it would also affect US social media platforms and they want to continue doing that when American companies do it.

Yeah, they would just say that those public domain works or open source repositories teach minors undesirable knowledge of some sort or compete with commercial software vendors and/or entertainment providers.

This will not kill Wordpress outright but it might very well significantly factor into the decision of every future person deciding if they should write a plugin to support Wordpress or some alternative CMS or if they should host a Wordpress instance or something else, especially companies offering commercial hosting.

It might even lead to a project or two that will eventually replace Wordpress in its dominant position.