No religion at school and no religion at work, it's a balance that makes sure one doesn't oppress the others.
When a group of people are given a pass because everyone is afraid of them, then we have the start of tyranny.
In reality most people just want to be allowed to do their own private thing and be treated well by others. Going into a room in private to practice your religion isn’t tyranny, it’s reasonable accommodation. They are no more going to enact a tyranny by doing this, than I do by making the sign of the cross when I eat my lunch at work, or that a Sikh coworker does by following his beliefs and wearing his turban, or a Jew his kippah, or so on...
Employers aren’t offering the prayer room because they fear violence, it’s because they want to appeal to their employees by giving them a comfortable and welcoming place to work.
Sharia law will be considered a religious right in the future in the US. And because we were hypocrites before, we will be hypocrites again. And if you don't think Sharia law will bring violence with it, I can provide links for you to study.
Like... a prayer room? I'm imagining it now and... seems fine? It's hard to read your complaints as anything other than xenophobic, but maybe I'm misunderstanding the point you are trying to make?