Guys, this is on the content creator. They are manually placing ads intrusively (and in the case of unskippable ads, are intentionally checking the unskippable box). Instead of ad-blocking everyone, leave a comment on that content creator's videos and stop watching their content.
Just leaving the video doesn't actually send a message, you have to actually leave a comment if you want it to get across.
If I watch a TV show and get up to make a drink when the commercials , are on am I stealing content?
I think the word "stealing" was wrong from the get-go, but the major difference is that on TV the ads are paid for regardless of how many people see them and that is the intent of the content provider, whereas on YouTube the ad does not generate money if it does not start playing. It's not theft, for sure, but there is a tacit understanding there that you're not really following the rules for your own benefit at the expense of the creator and YouTube.
Now of course, you're not required to watch any given channel, especially those who abuse their advertising abilities, so I'm of course only really arguing for the sake of channels you do enjoy who don't provide alternative methods of payment. Either way I'm not really looking to debate, just want to point out that there is a tangible difference between not watching ads on TV and outright preventing YouTube ads from running.