Ever heard of Merkel, who - through the Eu-commission- imposes refugee quota on other European countries and threatens to cut funding if they don't comply?
Many groups on the left objected to the ban on immigration from terror-prone muslim countries. Many also have argued for much higher levels of refugees and objected to Trump cutting it back somewhat.
If you're really interested in the subject of sharia courts in Britain: but i have no doubt you aren't cause it won't "support your narrative"