The courts already distinguish "commercial speech" as a class of speech. Would we prevent all forms of commercial speech? What about a waiter asking you "would you like to try a rosé with that dish? It pairs very well together." Is that "advertising" that would need to be outlawed?
What about giving out free samples? Is that advertising, and thus should be illegal?
What about putting a sign up on your business that says the business name? Is that advertising?
I hate advertising and propaganda. But the hard part IMO is drawing the line. Where's the line?
The biggest example that comes to mind is gambling. Japan says it's not gambling if the pachinko place gives you balls and then you have to walk next door to a "different" company to cash out the balls. I say it sounds like their laws are captured by the pachinko industry.
Video game loot boxes are technically legal but most of us don't want children gambling. Even if the game company doesn't pay you for weapon skins, there's such a big secondary market that it constitutes gambling anyway. Just like the pachinko machines.