这不是as...as...比较结构。理由有二。第一，as...as...比较结构中，as分句必须留出不可补全的空位，而本句中as分句成分齐全，不缺任何成分。第二，逻辑上as分句无法和前面的as persuasive构成比较关系。由此排除比较分句，as引导原因状语从句，as可以用because替换。

as persuasive: 同样有说服力，as表示同样的，只能是和前面内容构成比较关系。网上搜一下原文，发现前面的句子确实与as构成比较关系：

Good human relations would call for me to go directly to the person and explain the situation, to try to enlist his help in a constructive, positive solution. If I sensed resistance, I would be as persuasive as I know how to explain the benefits we can all gain from working together, and the problems we, the company and our customers will experience if we don't.