Define "democratic". He consistently imprisoned opposition members and journalists, banned parties, fixed elections... Support is there, but let's not pretend it's so overwhelming -- in the last two elections, he failed to reach the supermajorities he craved and was forced to reshuffle an unpopular government. Despite all sorts of shocks, there is a quantifiable amount of people resisting his rule. Hopefully this won't change after these horrifying purges.

Having democratic support doesn't entitle him with right to dismantle the very system that let him be elected, and in my uneducated opinion that's what he does.

Democracy is playing by the rules, not changing these rules each few years as you see fit, even while quoting "popular support" (but not holding any referendums, definitely).