There you go. But it might bear consideration to ask why such anxiety exists. if someone were a secret Buddhist, they might engage in secret meditation, or quiet pondering of unknowable questions. A secret Hindu might make secret sacrifices to the Monkey God. Unusual but nonthreatening behavior.
As for harassment, I don’t think any is acceptable. But there are always going to be some incidents, in such a large and diverse place. While not excusing any of them, it is possible to see the difference between extremely rare, isolated incidents, and huge systemic problems. For instance, every time there is an incidence of Islamic terrorism, there is much fretful worry about the massive tide of Islamophobia that is about to spring up. But it does not seem to be happening. Almost everyone is just trying to get along. The vast majority of reported anti-Islamic hate crimes seem to be hoaxes or misunderstandings.