Certainly many of us find ads offensive *when badly done*. But I'm about as strongly against ads as you can find -- I block them almost everywhere because I have visual problems which mean that any ads displayed next to text will visually overlap the text, so if they're not of very similar colour and 'ink' density (which they never are) they'll make the text unreadable. And ads that leap out at you are unacceptable because they're a distraction and I have enough problems with *that* as it is.
But even for me *some* ads are tolerable. Google's text ads are of the same density as the text and are clearly delineated so I can skip them. Ads on the special-offer Kindle are acceptable because they're only displayed when the device is off and thus not displaying text I want to read anyway. And because the latter ads, at least, are actually targetted to some degree, sometimes those ads *are* useful, in that they tell me about things I would have wanted if I'd known they existed. If you'd told me three years ago that I'd avoid paying to turn off ads because the ads were useful I wouldn't have believed you. But no, it *is* possible to do advertising right enough that even someone with biological reasons to loathe advertising can like them. It's just that most online-ad people are so far from that that it is hard to believe.