Sorry, but no, just no.
MS (correctly) recognized the threat that browser poses to OS through webaps. They bundled IE with Windows, however their bundling was a simple and effective (and monopolistic) strategy to take away market share from the then-leading browser, Netscape.
Yes, OS needs a browser. No, MS and Bill had nothing to do with that (and they artificially slowed down web the best they could - hello IE6!).
I do agree with the rest, but to credit MS that every OS needs a browser nowadays... Just no.