There is a possibility that you have not considered.
All of the figures that you mention have looked into it, thought about it critically, weighed the “evidence” and decided that there is nothing to it.
The way to get rid of Obama is the old fashioned way- vote him out. If we can’t do this, and the country actually wants this guy, the problem is a lot bigger than Obama and where his father was born. The problem is that the populous is irreversibly lost.
What "evidence" did they look at? Zero has successfully sequestered any and all records pertaining to his past. So what "evidence" did they look at?