Fill need to be fixed

Let me try to put this in terms you can understand. "Fill" is saying "I want to be in a game asap, regardless of what position I am in". BUT because no one likes support, the support position is almost always open. Which means that you will be put into it more often than the other positions.

In other words, "fill" is not "random position" but "fill in the blank". If a game lacks a top, you will be placed top, if it lacks a jungle, you will be jungle. If it lacks a support, YOU WILL BE A SUPPORT. And most games lack a support. Fill is not broken, it is working just as intended. It is taking all those "fill" people and putting them in the role that will get a game rolling the quickest. Which tends to be support, because people cannot appreciate it for the action packed role it is.

There is literally a higher chance of getting support when you select fill than support primary.

Also that is impossible, as you always get support with a support primary, and I have gotten top, adc, and jungle too as just fill.

That's the point......

Fill is what you choose when you need/want to get into a game immediately.