What is Western Civilisation?

What is Western Civilisation? Is it the combination of Athens and Jerusalem? Can we have the West without Christianity, or do we have our freedoms in spite of religion? Was the enlightenment the pinnacle of our development or a mere stepping stone?

Is Western civilisation racist? Can it be for everyone? Can we maintain it within a multicultural society? What should we make of the Ramsay Centre fiasco? Is Western Civilisation dying or committing suicide?

Resources
Douglas Murray, Claire Fox and Yaron Brook - https://youtu.be/mJZqKKFn3Hk

JBP and SH in Dublin - https://www.youtube.com/watch?v=PqpYxD71hJU

Pinker - https://www.ted.com/talks/steven_pinker_is_the_world_getting_better_or_worse_a_look_at_the_numbers?language=en

Bella d'Abrera -
https://quillette.com/2018/09/27/western-civilisation-not-welcome-here/
https://www.youtube.com/watch?v=T-CkVf2De5M

Ramsay Centre
http://www.ramsaycentre.org/