Democratic principles cannot be cherry-picked

To live there, as in other western European countries, one must accept the democratic system of government with all its long-established principles which have evolved over centuries.
France is the latest democratic country to suffer the violence of Islam with 12 members of staff of a satirical magazine being gunned down in their office. These murderers decided freedom of expression is unacceptable when applied satirically to their beliefs. Those submitting to a 7th century political ideology, unchanged since its inception, must be made to realise they cannot displace democratic values with their totalitarian values and certainly not by force of arms.
Muslims are choosing to migrate from their own countries, where Sharia law is enforced, to democratically run countries.
Why is this quite massive migration taking place? They are foregoing the very principles they claim to stand for only to live under a system of government to which they are violently opposed.
The answer must be that they see opportunities to exploit the benefits and freedoms they like while taking offence at others which they consider their right to change.
The principles of democratic government cannot be cherry-picked and the laws of a country apply to all. Sharia law and democracy cannot be blended; they are diametrically opposed.
People have the choice, they must accept one or the other.
JC Wilcox