I would not agree with this at all. I grew up an evangelical Christian, and everyone differed in opinion, however there is a big push to find unity between denominations, so it would break down in my mind like this:

Evangelical Christians believe in the same basic tennants of faith: baptist, evangelical free, reformed, pentacostal, four square, on the fringe are uninted, lutheran, anglican, episcipal and catholic. They generally find alot of unity, despite disagreements on demoninational differences like baptism, liturgy, speaking in tongues. Many evangelicals exclude even Catholics as brothers in the faith, because they discard essential tennants of the faith, some of them are 'born again' but it is not an essential part of being catholic (many people are 'born' Catholic, you can't be born 'saved').

Also excluded are cults: LDS, JW, etc. And foreign religions: Hindu, Islam, Bhudists. Atheists are just nonbelievers, but I think many of them draw special attention because of thier intense antagonism and dogmatic beliefs.

The average non believer/non atheist doesn't seem to think or care about God or religion and the topic doesn't come up, or it's as boring to them as a guy in a fabric shop. Its hard to draw any sort of hate when there is nothing there.

Generally speaking, most evangelicals I know would find little in common with any of the outer religions, and would take big exception with a statement like 'but you worship the same god' because their God, in their eyes is nothing like other gods.

All evangelical Christians differ on how they treat people (there are jerks everywhere) and how they think of non believers. Some of them feel pity, some try to evangalise, pray, some just treat them like normal people. If anything, non believers can experience less hate in general then other religions, because they appear open, and are not trapped in some 'misguided' cult or religion.