That's fine as an initial emotional viewpoint.
The question however becomes slightly more complicated when you actually examine it.
While there has not been a due legal process of impeachment, the Ukraine parliament, which is the duly elected body, and as much as anything represents democracy, unanimously voted him out on a concentration of power being misused mandate.
Where does legal technicalities end and democracy start?
Well, most would contend in international law, that it starts with self determination on legally elected bodies.
And based on that, he's f*cked, and the argument is a mere technicality.