that's right STP, I wouldn't pass you on Greek grammar if you tried your Gal 2 tricks. 'Euangelizo' is one gospel and there are ways in Greek of saying that they were preaching different ones, namely, '(verb) tes euangeles.'
Like your saint Judas, who you assert preached this "one gospel?"
Luke 9:6 KJV
Sssssssssssssssssssssssssssssssssssssssssssssssss......We smell your sulfur....