Despite all this a Team of negatively biased judicial & FBI functionaries were unable to come up with the case they so earnestly sought to develop for nearly two years.
Their job wasn't to indict Trump, despite what conservatives keep parroting. Their job was to investigate what happened, and hopefully we'll know soon enough.
This was an investigation by an appointed Special prosecutor, acting under existing law governing that process. Their job ( though we have yet to see the 2nd Rosenstein letter) was to investigate the charges of collusion with Russian interference in the election by the Trump campaign. No charges relating to that issue emerged. "Finding our what happened" is not the prescribed legal outcome, your assertion notwithstanding.
Our legal system is designed to judge only specific actions that violate the law. Judging the overall merit of an individual (as the Democrats clearly have already done in the case of Trump) is not an appropriate function of the law, The ongoing efforts of Democrats to examine all the information produced in the investigation to aid the continuance of their dialogue about how "bad" Trump may be is a violation of the letter and spirit of our legal system.