Women, mostly, are marching and that gives you a clue about what–rape and assault. Interestingly, the marchers are being attacked by Antifa types. I guess their support for Muslim refugees outweighs their support for women.
https://www.wochenblick.at/mut-frauen-von-wien-so-lief-die-demo-gegen-asylanten-gewalt/
www.wochenblick.at/immer-mehr-deutsche-demonstrieren-gegen-asyl-kriminalitaet/