Why is this really an issue? 
I'm an atheist at heart, but I don't see how allowing some Muslims to pray will degrade our values.
We have a four day weekend this weekend to celebrate the re-birth of Christ.
As an atheist, I am utterly offended that my place of employment is closed on Friday and Monday for this religious holiday.
Why not have a four day weekend for Passover or Vaisakhi?
Why not just rename Good Friday and Easter Monday "spring holiday"?