Your quotes on Baghavad Gita are not only incorrect but also dangerous and out of context! You cannot quote a verse from the final chapter. You need to understand the follow up to that verse.
Lord Krishna also says "Karamanya Eva Adhikarasche Ma Phale Tu Kadachana..." meaning never get attached to NOT doing your duty. Duty of Arjuna (swa-Dharma) was to fight since he is a Kshatriya.
So you just cannot suspend and reject all religions on the base of this Sloka.
Besides, Lord Krishna was telling Arjuna that inspeite of him saying all this he doesnt still get convinced then throw all religion and just surrender unto him
This is why you need to hear this in a Guru-parampara system. Dont just read some translation and offer your mis-quotes here. Please correct urself!