I'm fine with paying for things. I mentioned donation buttons and paywalls. I'm not fine with making my computer do things I do not want it to do or forcing me to watch things I do not need to see.
Don't be disingenous. I'm saying that when I merely visit certain websites, they try to manipulate my computer to do or display things certain things I may not agree to. They try to make my computer run certain code that doesn't suit well with me or make my browser show images or text I don't want to see.
I consider unsolicited advertising pernicious and inherently morally wrong. Manipulating people into buying things they don't need creates an awful consumerist society of people who spend their lives acquiring junk that doesn't make them happy. I have never asked to be advertised to most things that are being addressed to me. I don't think this means I should ostracise myself from society when I can just adblock.
More superficially, if I decided to change font faces or sizes on some website, would you say I've breached a certain social contract of how the website author decided I should see that website? Am I robbing them of their artistic integrity by not honouring their font choices? If I think advertising is pernicious, and in fact react negatively and with anger to most advertising, am I doing them a horrible disfavour by changing the page to not show those ads?
I don't think I am. Once the bytes arrive on my computer, I should have the right to display those bytes in whatever form suits me. I hate ads and savage consumerism so much, that it's really in everyone's best interest if I don't see them.