The ultimate purpose of ads is getting money from us, why can't we have a say about how the request is presented to us? Ads are not a privilege or a right, they're beggars posted at every corner of the Internet.
Yeah by not visiting sites with bad adverts.
By not consuming intrusive ads, and by not buying products promoted with unethical practices.
You can't possibly defend the current state of private spying and surveillance, it's dystopian. The data collected is sold (directly or indirectly) to bad actors, and is ripe for abuse. You can't just say "deal with it or GTFO", ad blocking is the only recourse we as consumers have to voice our opinion.
It's not - you can prefer paid services over advertising-supported services. Buy a physical magazine rather than a digital subscription. Etc.
But a website could cover the marginal cost of serving me content with simple image adverts, sponsored content, donation mechanism, subscription or otherwise. They may decide that having X% of viewers block ads is a ‘cost of business’ and is worth it to increase viewership.
Modelling the situation as ‘honest’ to accept ads and ‘dishonest’ to block them may undermine the chosen business model of the site, and not visiting again models the monetisation strategy as static, which it is not.