"...Yanukovych did in fact abandon his presidency...." No. Tangs provided a link to an article that clearly states that he was overthrown.
"...He made a series of poor choices..." Sure. Although his choices were not as poor as Zelensky's. Whose choices led to a full-blown war that Ukraine has next to no chances of winning (winning = restoring 1991 borders).
"...He voluntarily left the presidency..." That's incorrect. He was ousted as a result of an unconstitutional procedure.
"...lazy repetition of pro Kremlin propaganda..." Referring to opinions you don't like as "lazy repetition of pro Kremlin propaganda". is simply a lazy way to dismiss the facts without having to substantiate yourself.