You can't see the purpose of the political concessions unless you know Islam. People naturally buy into the specific reasons given for each specific concession and easily miss any larger purpose. Politically-active orthodox Muslims will continue to encroach on Western laws and customs, concession by concession, until they become a political force that cannot be easily resisted. They will have gained a level of political power that cannot be peacefully undone. They will have gained a sufficient foothold in the society, producing new Islamic norms, getting non-Muslims used to these things, until everyone feels "it's just the way things are." Islam is a ratchet.
The purpose of each concession is to fulfill Islam's prime directive: To make the whole world subjugated to Islamic law. If you don't know that, or if you don't believe that, you will take it on a case-by-case basis, and they will gain one concession after another.
If you haven't noticed yet, my gripe is with multi-culturism and it's associated sins.
Ignorance coupled with do-gooder intentions coupled with "white guilt" or (we are wealthy and prosperous so that must be wrong) results in policies that will lead to the destruction of the way of life as we know it and the erosion of the freedoms we take for granted in what we consider to be a less than perfect democracy that we live in.In other words we are handing over our lives to Islam and not even realizing it.