you bought IE
You did not have a choice.
It is illegally commingled and bundled with the Microsoft OS.
So why wouldn't 50% still use it?
Now if Microsoft offered consumes a choice or allowed customers to download and install a browser of their choice like just about all other applications, then the comparison of use might make sense.
If you are forced to buy a burger each day for lunch (whether you eat it or not), it makes sense that most people would eat it. 90% are forced to buy it. Only 50% use it. That means that 45% toss the burger away.
Seems like those idiots should be complaining about the requirement to purchase that burger.
Being forced to buy a country mandated uniform is the same thing. Your opinion does not count. Every time you shop for clothes you have to buy the governments uniform. They your opinion on clothes would matter the same as browsers.
Both the US DOJ and the EU Commission have agreed to force the sale of IE.
Just remember, if you have a copy of IE, your opinion does not matter. Not to Microsoft, that is for sure. They get your money every time.