It's also an argument to protect the rights of the actual owner of the site. I'll put whatever I want on my website, and you can come to or not. I don't need a bill of rights that limits my freedom of expression. I will present my voice in any fashion I see fit on my website.
Use a browser that allows you to modify the content in a way that presents the content you want. That's the boundary you have to play with. My computer gives the information I want to your computer. Your computer does what it wants with that information.
If your OS doesn't allow you to use a browser of your choice, then that is the restriction you attack. Not mine.