Well, it went like this .. debates and arguments .. finally, you find the fellows telling you: ok, you are correct but these verses are quoted .. so, you if anyone reached that level, just refute and you did your job

As for changing the mind, anyone - including myself - who really are not going to accept changing their mind, at least they should think sincerely about their current situation .. it doesn't hurt to ask and search for answers anyway because I loath any blind faith!