Absolutely boycott the companies you listed, but sending a demand letter for documents will be met with a big FU, unless a formal lawsuit and discovery happen.
Yes, that would be better. You’re right on that...
But in the meantime the drip ,drip, drip of our hatred for these groomers/mutilators mustn’t stop. Every thing we can do against them that’s legal needs to be done. Even if it’s not that effective. The totality of our hatred and commitment will wear them down..