That's complete nonsense. First and foremost someone is innocent until proven guilty. A basic concept you find difficult; it undermines your belief in your own legal authority. If you took him to court, a defence lawyer would very quickly look at the the word "fiotte", open up a french dictionary and show examples of its use in everyday language with no LGTB connotations. They would also assert that a closer translation of "faggot" is "piede". A completely different word. The N-word association is not there. You're premise of a hate crime would dissolve rapidly.
You'd be left with someone miming a blow job? That's it? How many girls have done this with no hate involved? Why can't men? By the way how do you portray a gay sex act negatively? Are you saying he's bad at giving head?
If you needed any more they would take a statement from the accused to say he was questioning his manager, not suggesting he was gay. They would confirm that the comments had nothing to do with being gay in fact, and there was nothing homophobic. The judge wouldn't even bother hearing the case. It would be a waste of time. If it is such a cut and dry outrage, why didn't LGBT groups take him to court in France? Are French groups not on the case?
However, as you are completely consumed by this, and 100% certain of the law, why don't you make the case and take Aurier to court? My guess is you wouldn't get much further than you have on this open forum - an organic arena for pubic judgements.
There are many genuine issues, surely you could spend your energy actually helping someone?