There definitely is anti-Christian persecution in America.
It does not come at you directly for being a Christian but usually in a roundabout way - and it's subtle.
In the workplace you may be labeled as "not aggressive enough" or "having a funny personality", you may be denied promotions or pay rises, you may be the butt of people's jokes.
Outside work, most people are not appreciative when you hand them a tract. People may not want to sit next to you on the bus, if you're reading a Bible, etc., etc., etc.
The way to handle it is to: 1. Thank God you bear the name "Christian" and 2. Ignore their arguments and realise the problem is that something within them rebels against Someone within you.
PS. I no longer live in America. Things may have changed - probably for the worse - in the 25+ years since I've been gone.