That's a bunch of bullshit. Religion is not the same as science, and you know it.
I don't get offended when someone tells me I'm going to burn in hell for no sensible reason at all. I just get annoyed.
Most people don't get offended when religious people respectfully ask whether they want to hear about a particular religion. And if they do, then they're wrong. But I'm willing to venture that most people get offended when the preacher on the street tells them that they are bad people and creatures of Satan, and that the only way they can save themselves from an eternity of misery is to convert to Christianity. When that happens, people have every right to be offended. Sure, people take it too far, but that doesn't change the fact that it's offensive behavior to begin with.
Or do you disagree?
The fates lead him who will;
Him who won't, they drag.