Does a loanword mean it should be given back at a certain point?

I would give this one back if I were you. Isn't there an English equivalent for it? Something with gravity or so?
I've listenened to the pronunciation and it is nowhere near it.
Shjwayr-poonkt would come much closer.

And when you look at the way it is used I think you wouldn't miss it.:

Context:"In the only arty shot, the Dalai Lama, seen in silhouette, sits at the schwerpunkt of a Mondrian-like composition." frown