You can. The problem is that they're changing them to actively and intentionally circumvent the expressed wills of people visiting their site.
I'm allowed to move my arms like I want, but that doesn't give me the right to push people off cliffs.
I'm allowed to move my arms like I want, but that doesn't give me the right to push people off cliffs.
The will of the (informed) visitor doesn’t matter when they are visiting a place. I can’t have an intention to take a painting from a museum, ranging about the museum making it hard
In both cases, sites are attempting to tie content consumption to content monetization, and users are attempting to get the content without the monetization because they dislike side effects of the monetization.
It's also further defending hostile dark patterns and evading explicitly expressed personal intent.
The browser is a user agent, not a publisher or advertiser agent.