What did Luxemburg say about Capitalism -How does this link with Luxemburg's view on Social Democracy and WW1?

-Luxemburg had Strongly Opposed Capitalism. She argued that Exploitation was the Beating Heart of the Economic System and True Equality would never Come About unless it was Rejected -Luxemburg thus Dismissed Social Democrats as they had Failed the Working Classes because they still Support Capitalism and Imperialism -Finally, Luxemburg saw WW1 as an Imperial Conflict, which wouldn't Benefit the Working Class.