While I suppose I technically agree with you that you can't literally remove all trust by some definitions, that doesn't mean it's not vitally important to talk

While I suppose I technically agree with you that you can't literally remove all trust by some definitions, that doesn't mean it's not vitally important to talking about and carefully considering who you trust and in many cases use technology to remove the reliance on trusting particular parties. For example, if I say "I want to use TLS to order something from an online retailer because I don't want to trust my ISP with my credit card and purchase information" it would not be appropriate to respond with "well that's just ridiculous, because there's no way to remove all trust, after all you still have to trust the online retailer to ship you the item, you have to trust your credit card company to not overcharge you, etc."