Watch Out For Weasel Words.

Social justice - does not mean what it apparently says. It merely refers to 'leftist opinions on society'. Be on guard whenever you hear this expression.
Multiculturalism sounds warm and beautiful. In effect, however, it is designed to thwart integration and, as a bonus, to destroy any vestiges of Britishness. It lumps all religions together as being of equal value. It is designed to eradicate all former beliefs in order to exchange them for a socialist world view. 
Diversity. What could be better and fairer? But this is far from being designed to simply value all people as found in Christian teaching. 
It is the umbrella under which we have been given: homosexual marriage, the evil 'equality of outcome' and self identification as to gender - in spite of any and all biological evidence to the contrary.