Blockchain voting platform

What i have in mind is really user-simplified voting/election platform with some kind of registration (preferably Facebook login) which would prevent bot voters and prevent multiple votes from same person. So basic concept as imagined: User signs into platform with FB profile. No personal data gets stored, only data which is necessary to check if some specific FB profile has already voted/signed in. After completing sign in, person gets short poll of general personal information (e.g. sex, region, etc.) and ofcourse voting list (of e.g. political candidates). In next step transaction has to be made to adress of chosen voting candidate. Sending transaction, specifiing gas limit etc. has got to be totaly hidden from user. Frontend user/voter experience should be no more complicated than pressing button. On index page of platform should be presented live results of voting with option of filtering based on general personal information groups of voters. I'd prefer usage of Ethereum test networks or any ERC20 token - as long as its free. For any more information, please contact me