What I implied, I-S, is that Stenger has a motivation for using force to suppress religious belief, not that he has an advocated using it. Christianity doesn't teach that violence should be used to suppress opposing beliefs, but it is quite true that people who think that there is a great deal of stake in maintaining a particular religion have a motive for using force if the opportunity presents itself.
Christianity also, it seems to me provides the basis for arguments against using force on its behalf.
Of course, I can't be sure what people would do in a situation that they do not in fact find themselves in. Stenger seems to think unbelief is winning, so violence won't be necessary, as it was not necessary in the European countries that serve as his example. But I hear from people like him a kind of urgency about winning people for unbelief that goes like this:
"We are on the cusp of history. We can either abandon faith and embrace science, or we can hold on to faith and retreat to a new dark age. Everything depends on which way we turn at this critical time in history. That is why we have to work hard to achieve the end of faith, so the new Golden Age can be inaugurated, as opposed to a retreat into the benighted past."
When someone talks like this, I have to wonder what they would NOT do to make sure we turn the right way, if they were given the opportunity. On what basis would they refuse to use whatever power they had at their disposal to make sure we abandon faith. It seems to me that such people have the motive in spades. What would happen if they had the means and opportunity, to become the atheist equivalents of Grand Inquisitors? The fact that they don't advocate the use of force is not very comforting, since they don't have the means to use force if they wanted to. The fact that some of them already advocate treating those they disagree with in ways that remind me a lot of the schoolyard bullies I dealt with in grade school is even less reassuring. If the end is so important, what means will not be justified?