They are evil tho, on top of there being market pressure. Their executives are incredibly comfortable with causing large scale harm, even when they are NOT forced at all.
> If you cap advertising dollars, you cap advertising effectiveness.
And that is OK. Not just ok, but actually good. Their effectivity and their evilness are closely related. Their effectivity and harm they cause are essentially the same thing.
> The impact of reducing advertising effectiveness is disproportionately concentrated on small business where cheap and effective advertising is so important.
Nice try, but no. Who benefited the most were the bad actors, conspiracy theories, weight loss programs specifically marketted to teens who posted about being insecured about their issues.
Marketing is just an arms race. It is ok to limit how manipulative and harmful it is and force companies to compete on something else.