I have one answer for you. Ukraine is at war. You can't push them to have elections, when their country is in such crisis. It would be impossible to ensure safety of the voters, also there's law in Ukraine in which is said that there can't be elections during war time.
How to ensure people's right to vote in occupied territories? Etc. Etc, Etc.
Alone of this, your post loses smallest grain of credibility.
Dissolved political rivals? You can't argue with a straight face that Ukraine should not ban pro ruzzian parties, when the same ruzzia attacked Ukraine.
Regarding grenade, time will tell. You can't say Ukraine is a failed state because of that incident.
'Clown-world' - yeah, ruzzian propaganda actively calls Zelensky 'clown'.
Like I said, you're soaking wet in pro ruzzian narratives. PATHETIC!