i really dont find any reason for you to keep saying you are a muslim if you sincerely dont believe in the vicious quran, just like Yacov said. if you keep on calling yourself a muslim, despite saying you are righteous, then you ARE doing the Taqiya, simply no other explanation exists. you just cant be in the middle- either you are a muslim, with all the qurans obligations to do kill infidels, or not. unlike Judaism, islam isnt a people, but only a religion. why would someone who doesnt believe in this religion would still call himself a muslim?? you can drop islam, if you didnt lie about your beliefs, and become a "Noahite", thus being a righteous gentile.
but after all we had from muslims, dont expect us not to be suspicious of you. clear your position and decide what are you- muslim or noahite.