I was in 2 minds about posting a reply to this as i have identified as evangelical Christian for the last 2/half decades which on this site isnt popular.
When i hear the stuff people encounter from cerrtAin faith groups i cringe. Unfortunately the fruit loops and fanatacists are always the most visable and the 2nd guy you spoke to although slightly inept is probably more representative of those i mix with. I dont know of anyone in the churches i have gone to that would shout abuse down the microphone in the street and ive met some pretty fundy christians
but im not doubting you. As regards evangelising myself i have a total adversion to both giving and receiving it and think its a dreadful witness. My church is heavily involved in community work which involves monthly messy church which gets around 40 kids and 20 adults, and an annual community week of entertainment usually for kids and families. Loads have joined from these. We had about 6 baptisms in the last year in a church of 60 people- bit better than JWs. All adults.
Regarding the comment about jesus giving him something to live for. I wouldnt agree with this, i have family, friends life etc i dont think his view is that representative but it may be that if that church encounters a lot of depressive suicidal people then that view is expressed commonly but i wouldnt say most christians i know would feel thar way.
I think what you encountered was one of the very fundementalist versions possibly new fronteers which tend to be more that way. Extremism of any type is ugly and there are plenty of extremely devout atheists on this site who can be quite offensive to those who do have faith too.