Advertising unethical

I’d say it’s not inherently unethical. How else would you find out about options for a thing you need?

How current the ad industry works however, can die in a fire.

I walk to the store, I check what’s there, I ask an employee for help, then make my own decision. If it’s shit, I don’t get it again and tell who I know to avoid it. I don’t get products that people I trust have had bas experiences with.

Advertisements are lying. Every dollar spent on marketing is a dollar that could have been spent either improving your product or paying your staff. If you advertiae to me, I will actively avoid your product.

You walk to what store? How do you know the store exists? How do you know what the store sells? What if you live in a small town that doesn’t have a store that sells the required thing? How do you know where to drive to to? All this basic information about the store itself is coming from advertising. It’s not just about popups annoying you online.
It sounds like you’re considering the sign above a store to be an advertisement.
It is. Why do you think store logos aren’t just a plain text sign on the door? That would be far cheaper for the store to do.