"I lost many friends".
No,you did not.Those weren't your friends.
Not sure if various feelings mentioned in the post are targeted correctly. Yes, there's lots of politics,bs,and coolaid drinking in a lot of companies,but that's the nature of what we humans are.
There are a lot of very rewarding and interesting jobs out there that don't have all that bs attached to them,just don't be shy to look a bit further.