Donald Trump sought an investigation of his political rival (Biden) in exchange for assistance from the USA to Ukraine for its national security...acknowledged by Trump's ambassador who participated in that "Quid pro Quo"...you have an odd value process for assessing "disgusting" behavior.
Your second point...whose heads must roll...and why?...strong words should have strong justification.
Your third point...I already posted that Biden specifically called on FOXNews reporter, Peter Doocy... answered his question fully...and didn't think to call him "Nasty" or a member of a "Fake News" organization...so your implication that Biden is dodging opposition media is indeed false.
What else would you like corrected?
Link: https://youtu.be/UB9aWZu5vBE