Somehow you seem to almost intersect white supremacy with evangelical religion. Did someone forget to tell my wife and I about this (she is Asian) or my son and his wife (she is African). Did someone forget those South Carolina evangelicals that made Tim Scott their Senator.
Your fear mongering is disgusting...
So let me help you... evangelical religion is based on the premise that Jesus was the son of God and died on the cross for whosoever (notice race, gender, even gender orientation included in the "whosoever" part) believeth in Him should not die but have eternal life. Evangelicals believe we should love God with our hearts and love our neighbor as ourselves (again no exceptions).
I do think evangelical Christians feel threatened not because they feel they need to exclude people but because they are increasingly feeling excluded. When a Senator questions whether a woman can be Supreme Court justice and a practicing Catholic... that is pretty scary.
Historically, some misguided evangelical did attack abortion centers. But if you believed genocide was occurring what would you do? As an evangelical, I don't condone that violence or violence of any kind.
The big advantage evangelicals have over progressive liberals is that we believe we are in this world and not of this world. Progressive liberals believe they need to "conform' the world to their views. Christians largely accept we live in a secular world, that for the most part will never share our beliefs.
Nothing captures this more than a sermon given by our minister who grew up Pentecostal. The essence of his sermon was he worries far less about whether Christians CAN pray in school and far more about whether they DO pray at home.
I don't know what it is about you that causes you to seek out some strange churches... but frankly your experience is different than mine. Can you name these "racist" churches and the ministers that promoted racism? You should if it is true... there is no place for racism in evangelical ideology the way it flourish in progressive liberal ideology.
So name names... your whole article seems like a giant dog whistle to the left... if someone is a white supremacist then they are not an evangelical follower of Christ... pretty simple...