it's not a sham, it's just america as usual. rich white people dont have the government spying on them all the time and even if caught a little dirty, nobody wants to throw the book at rich white people. you really have to do a lot of bad before you get in trouble if you are rich and white. trump was too unimportant for so many decades to really bother policing his behavior, then when they figured something worse was happening, it was too late.
also, lazy democrats simply put too much stock in all this emotional hatred and dont want to actually get down to the reality of why a guy like this won. they know the limits of american law enforcement when going after a president. they, more or less, knew the range of options that would be available after the report was made. pelosi would rather stoke your hatred for votes and donations without having to actually do anything to inspire voter turnout that would anger the even bigger donors. this is why all these educated, experienced elite politicians could constantly appear to get hopeful about hurting trump legally and then lose so many times. they know better but this is the game they play because they havent been forced to come up with another playbook yet.
also, mueller's job is not to weigh in on politics, so it isnt up to him to suggest political actions like impeachment. the people you sent to congress should be doing that. republicans never act like this, by the way. my god why are democrats such bytches? and why do democrat voters refuse to be lead by bytches?