You can make a thin argument about Brave being parasitic. Blocking ads, but allowing people to opt-in to ads for which Brave takes a cut. But I don't even see

You can make a thin argument about Brave being parasitic. Blocking ads, but allowing people to opt-in to ads for which Brave takes a cut. But I don't even see any argument at all for bringing DuckDuckGo or Vivaldi into the discussion. * DDG is a search engine that doesn't track its users. It kinda sorta emulates Google's look-and-feel, but so does Bing and Wolfram Alpha and search.yahoo.com and everyone else. * Vivaldi is yet another Chromium-based browser, for the microscopic niche of Opera fans who feel that Opera "went mainstream". If it's parasitic to base a browser on Chromium, then Chrome itself is a parasite for forking off KDE's WebKit. Are you arguing that using privacy concerns as a marketing tool, to compete for a slice of Google's monopoly, makes one a "parasite"? Because not only is that a poor argument in the abstract, it doesn't even apply as Vivaldi doesn't really promote itself on privacy grounds.