Relax. Even if there is such a law it certainly is not illegal in USA to &quot;advocate (...) opinions (...) in public&quot;. See what happened last time someone thought advocating opinions was illegal [1]...<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Citizens_United_v._FEC" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Citizens_United_v._FEC</a>