Well, yes, you can feel discriminated, because you're not able to speak English like a native speaker.
But on the other hand, maybe you can start to learn...and maybe you'll not be a part of this round, but maybe part of the next, and the next, instead of blaming around, how discriminated you feel and be never part of it?
Well, it is, what it is. English is the most spoken language of the whole world. And if I, or you or who ever wants to be part of something, what is international, you'll be confrontated with English. It's not so long ago, that I felt very sad about my really rocky English...but I started to train it. I wrote in English in forums like this, instead of German. I used Google translater, to see, what will the translation be. I asked friends about my grammar. I started to speak English at work, every chance I had to do it. Did I do mistakes ? Oh boy, yes, I did and I still do. But it's going to be better and better every week.