You're making more ridiculous statements. Why is it unrealistic if these characters go away (or at least are vastly reduced)? You're talking like the sort of extremists that are now sending rape and death threats to people (most of them women) who are speaking out against this sort of thing, because removing that sex appeal among other things is somehow going to ruin their games. Can you see why this might be a problem? It's fostering a view of gaming that games are just created as expensive toys for men, which is stifling the medium and allowing for the sort of rampant man babies that associate themselves so strongly with them to continue doing so because these games are made solely for them and nobody is willing to challenge that fact.
You can point to a few examples of strong female characters (most of which aren't the leads, I will add), but that doesn't change the fact that games are still largely being created in a vacuum for straight white dude bros to live out their power fantasies in. I'm not saying those games can't exist, but when the VAST majority of games released are nothing but that you have a problem.
Also here's an article worth reading that's not entirely related to this argument but features the choice quote that "out of the 669 current-gen games which had protagonists of a specific gender, only 24 of these were exclusively fronted by women":
http://www.eurogamer.net/articles/2013-03-19-why-publishers-refuse-games-such-as-remember-me-because-of-their-female-protagonists