As others have pointed out, if you're being subjected to consumeristic propaganda, might as well make it non-targeted so there's less chance of you buying in. It's like being dipped in a tub full of insects. You could choose your favorite type of insect to be crawling all over you... but would that really make the situation that much better?

Personally, the only time I had mildly relevant ads was back when I had an account on Instagram. It served ads for local businesses that actually kinda matched my interests. The rest is just "oh, you searched for info on a long-dead general? Must be interested in WW2 replica medals, buy fifty!"