Based on personal experience only: Most of the Evangelical Christians I know are very pushy and judgmental if you are not of their faith. I only know a few Mormons, none of whom cared one way or the other what I believed. Broad answer, I know, but perhaps others have had the same experience.
As a Christian and pastor of those who put their faith in Jesus, I want to offer an apology for those you encountered who treated you without respect for your personal dignity and your God given choice to decide the life you will live. That is not the example Jesus modeled, nor is it one we as Christians should emulate. So again, as little as it might mean in this format, I nonetheless offer an apology and ask your forgiveness on behalf of those who follow Jesus as their God.
Related to this, I want to say there are many people who associate themselves with the Christian faith, and for the sake of this conversation evangelical Christians, who are nothing more than wolves in sheep clothing, to borrow a biblical metaphor. They simply want power, control and wealth and totally miss boat on who Jesus was, what he actually accomplished and furthermore are blind to the ways of life Jesus intends for humanity to interact with one another. Avoid at them all costs is a good option
I cannot speak to the "Evangelical Christians" you spoke with, but, I think Mormons passive nature to ones beliefs could be based at least in part on what
they believe. For Mormons or Latter Day Saints (LDS) most everyone goes to one of the three layers of Heaven, the only ones going to "outer darkness" or what most understand as hell (a place of punishment) are Mormon defectors, those who were once Mormon but walked away from that faith. So if most people are going to some sort of heavenly experience in the next life than one might see why there is less pushiness. With evangelicals, only those who place their faith in Jesus' work on the cross (God coming and being punished in humanity's place so we would not have to receive our just punishment, i.e., the grace and mercy of God) will be with him in "heaven", "the kingdom of God", etc. Therefore all others who reject Jesus' sacrifice choose life without God for eternity, or hell.
Whether one believes either of these views is not the main point, but understanding why Morons may be more passive and evangelicals more aggressive in their passion to help others understand things from their respective viewpoints (although I think many "Christians" miss the heart of the message and therefore become pushy, judgmental, etc). If you really believed someone you cared about was going to spend eternity away from everything good, I think it is reasonable response to be passionate in your attempts to reason with and persuade them to reconsider. Again, this is often misrepresented by those who are really not one bit concerned about someone else, who in rather calloused manner seek to bolster their numbers for purposes of power, status or whatever other impure motive they have for being pushy.
As a pastor of a church of people who would mostly identify as "evangelical" if asked to wear such labels (one that I myself do not wear) I have seen the other side of the coin. Spouses who are emotionally, mentally and spiritually heartbroken for their husband or wife, because they have no interest in the things of faith regarding Jesus. I know many people who really hurt over those they understand as without faith in Jesus, because of the end result of that lack of faith. More than this, I see many who desire a life of faith in Jesus for the benefits and quality of life is brings in the here and now as well as the life to come. Anyway, I hope that you encounter some Christians with this sort of respectful, gracious and yet heart felt passion for others if you have not already .
