I agree with Princess. Completely.
For the record, the Louvre is currently fine. Protesters walking past a building doesn't mean they're destroying it.
But people seem to forget that the Louvre houses far more than the Mona Lisa and Venus de Milo. The Code of Hammurabi, the Great Sphinx of Tanis, the Seated Scribe, and artifacts representing thousands of years of human civilization.
These aren't just French treasures. They're pieces of humanity's collective history, some surviving longer than entire civilizations.
Governments fall. Borders change. Political movements come and go.
You cannot recreate 4,000 years of history because someone decided to have a tantrum in the streets.
Protest your government all you want. Just remember, history doesn't belong to the people currently angry at it.
I care more about the Mona Lisa & the Venus de Milo than any one of these rioters