A little ham-fisted, sure, but if you think it's irrelevant you evidently didn't take any time to actually think about it (you did also reply instantly, so I'll take that over you lacking reading comprehension).

I'll simplify.

Digital piracy is illegal copying of unlicenced content.
Alice creates content.
Alice licences the content to Bob.
Bob decides to distribute the content with advertisements from Charlie.
You download the content.
Charlie does not pay Bob.
You did not breach any licences.
You did not pirate the content.

And just to further clarify, Alice is the person who made a video, Bob is Youtube, Charlie is an advertiser. Your argument is not an ad is piracy if "the advertisement company [hasn't] paid the content creator." The advertiser pays the distribution company, and the relationship between those two companies is irrelevant. The advertiser failing to pay does not retroactively turn you into a pirate.

The whole argument is pointless in the first place, it's irrelevant whether or not you consider ad blocking to be technically piracy. A sensible adblock argument would be around the ethics of manipulation versus payment, or security versus whatever it is advertisers want. Arguing semantics doesn't matter.