I don't think the idea of Arsenal buying him is ridiculous is all.
It's not happening mate, it's an imaginary claim only made by the fantastic Turkish media and no one else.
I think he's better than Xhaka
It may give you that impression by watching his performances in a weaker league like Turkey where the likes of Wagner Love can easily become a top scorer. Premier league is much harder, players in the Premier League are better and much harder to play against than the ones in Turkey. I mean, you and Fener are going at each other's throat to sign Jeremain Lens who's a big player in Turkey but didn't make it at Sunderland. Or the two players you loaned last summer who couldn't break into Benfica and Porto easily became your best players and best players in Turkish league this season.
Oguzhan can play in teams like Southampton, Palace, Stoke, West Ham.. If he can prove himself there he can work his way up. I doubt he can start for Everton when they have the likes of Barkley, Gueye, Davies there.