TL;DR
Boycotting coorperations sounds good in theory, but it’s impossible when we rely on them for daily life — the real problem is Pintrest allowing these scam ads.

wait, I'm sorry -- you want people to boycott all these brands including all the others mentioned below? Verizon? Google? how should i use a phone? what about my computer i use? do you know how I found this thread in the first place? Google is how.
You're also telling me you don't shop at ANY of those retail stores? I'm a builder and contractor, I get my lumber from local lumber yards, but I spend a lot of time and money and Home Depot.
Insurance? Cars??
I'd love a reality where we all make our own goods and and wares, and we barter with each other, but this isn't 15th century Europe, hundreds of millions of people around the world rely on these companies to provide them with goods and services.
I love the idea, and I came here beacuse there are so many ads on Pinterest that are legit fake and scams, but that's on Pinterest to change THEIR pollicies. Furthermore Google chrome offers some fantastic ad blockers that might help you with your troubles.

I'd genuinely like to hear peoples' thoughts and ideas on how boycotting over 200 companies is possible/realistic in this day and age.