It depends on the situation. Consoling someone with some serious problem, "I will pray for you" is an expression of empathy. "I will pray for you" as a rebuttal to a reasoned argument is an insulting dismissal of the other. "I will pray for you" as a random comment to a stranger is proselytizing - and similar to a comment such as "Trump will take care of you" by Trumpsters or "Bernie will take care of you" by socialists.
I agree with you there. What I find most interesting is how (*if you wished to*) you could convince others that your position is right, when those others are just as confident that their own (conflicting) opinion is right.
I realize you may not actually care about what anyone else believes on this issue, but just as a hypothetical, let's say you did---What would be the best strategy to convince a person that they are wrong? To insult them? Sarcasm, mockery, condescending? Be courteous and not a battle of personal egos? Try to make it as easy as possible for them to acknowledge their error? I would favor the latter approaches, partly as a matter of it being a more successful technique, partly because the former would involve being a jackass, which is not how I want to live my life.
I do think atheists here should care more about pro-active for secularist causes, including improving the social standings of outright atheists. Not just being defensive and waiting for some immediate threat to endanger us, like some piece of legislation that imposes on government/religion separation, for instance, before we speak up. We should try to stave off such threats from getting even that advanced. An ounce of prevention is worth a pound of cure. That is another discussion I will leave for other times though, and I know plenty here disagree with my take.
On any social issue in general though that you have a position on that others disagree with, and you wanted to become more active and vocal in support of your views, what do you think some of the better ways to convince those who oppose you is? Or do you hold the position that nobody ever changes their minds on anything, so I would rather just insult people because it makes me feel good, or something along those lines?