You are mixing news so as to adjust it to want you think. It's not the truth.
First Truth was that UAE wanted Dassault to take back Mirage 2000 in a Rafale sell exchange. But They want a too high price. Deal failed.
Second UAE tried to do the same with EF consortium. It failed also on technical reason (EF not suitable for UAE) and support issue of these Mirage (Dassault saying " do what you want with it. I will not support them anyway". Normal against a fierce competitor ! )
Third, and it's now, UAE think about a sell or a donate of 10 ou 12 Mirage to Irak. With the accord of Dassault, probably with a Rafale sell in bargainng.
This is THE truth. Not YOUR truth.
Why does UAE want to give back a plane which you claim is supieror to F-16 ? And still keep buying and using F-16 ?
UAE wants a twin engine plane, and since they want to get rid of them, one of the conditions they asked Dassault / France and also other potential sellers that they want to give the Mirage 2000 and buy the new planes in lieu of it and so the prices have to be adjusted.
Now since Dassault being the original producer of Mirage and France being user, that was the best bet for Egypt, so france could take these back and use them and sell rafale to UAE. Now the price evaluation of UAE does match the price evaluation by Dassault (Indian upgrade price shows that) but then the French being opportunistic and knowing that Mirage 2000 is utterly useless for them, did not consider it, France did however try to get India and some other countries interested in the UAE Mirage 2000-9, but then since India wanted to buy MMRCA so the idea was rejected by India. UAE is also considreing to selling them to some other countries also. So, till the point UAE does not get rid of their Mirage 2000-9 they wont be buying a twin engine MRCA.
UAE did ask Eurofighter consortium for the same, but what are they going to do with Mirage 2000 ?
UAE is mulling to sell to Iraq thats true, but the idea behind UAE wanting Rafales was only if French would have purchased the Mirage 2000-9 back, but since they did not, its still an open market.
There are few points about UAE that you should know. UAE is one of the smartest country in middle east,
They gave priority to Frane to get rid of their useless Mirage 2000-9, but since it did not work, they asked the same of Eurofighter consortium, and the moment they give off these plane, there is good chance that UAE will be ordering from USA. yes you heard it right.
UAE does realise that having good spare management is important, and America is one of the most reliable in terms of spares. So the priority for UAE will be USA.. Eurofighter (since Saudi uses them and have stocks of weapons for it) and then Finally France.. In UAE there was some talk of they being interested in Su-35, but thats just rumour, they will not go for having circus of different planes from different countries..
And this is the FACT FOR YOU.. Being a french does not mean you speak truth..