It's been specifically pushed in media, movies tv etc. I also find myself having to resist the urge to say Jesus Christ when exasperated. I'm not sure why it's so effective tho. Maybe just constant repetition over the years really effects one.
Like I said, They've been conditioned, so while some probably do it to mock God because they hate religion, some aren't even aware they are sinning while doing it.
But yeah, most hate hearing about God or Jesus in a positive way, it makes you wonder why they want to say it, even when used in a negative manner.