This is your experience but not mine. I started attending an IFB church in 1973 and have never been involved or seen IFB churches operate in the way that you describe them. It grieves me to see people white-wash an entire movement based on their limited experience.
IFB
Independent. We are not a homogenous group. We are independent from each other and each of us do things according to our own congregational government, not according to the dictates of the SBC government. (or any other such organization)
Fundamental. We not only believe in the fundamentals of the faith we practice them. That includes all the Bible. The Bible is fundamentally our rule of faith and practice.
Baptist. We adhere to the Baptist distinctives, those distinctives that make us distinctively different from others.
Then I stand corrected, but in contrary I have seen plenty of them frown upon street evangelism, open air preaching, and the Way of the Master ministry.