I think you are right. This kind of Christian does drive others away for Yeshua. They don't see it this way, though. They think they are loving you and they are trying to save you from a bad eternity. Still, I think, maybe they forget, that unless one is called by Elohim they will not hear the message with love, but will be offended. . "My sheep hear My voice, and I know them, and they follow Me."John 10:27. I think a Christian's' own life should reflect Yeshua's teachings, and then if someone comes to you, because of your example, and asks you about Yeshua, this is when you tell them the good news.