The videos miss some things which distort democracy badly.
No matter the system, lying to get votes is not democracy. We had a Labor politician named Steve Bracks who told the electorate one week before voting day that there will be NO tolls on new major freeway - a major issue at the time. Almost immediately after winning the election, he reversed his decision and there were tolls.
No matter the system, deception to get votes is not democracy. Trump stood in front of a church recently holding a bible, whilst he got the cops beat up pedestrians around him to clear the way. That stunt helped him get 80% of evangelical "Christians" to vote for him.
No matter the system, those with money and power tend to get a bigger vote than a poor person. Rupert Murdoch has a much bigger say than a homeless person living in poverty.
No matter the system, any democracy is better than living in a communist country run by a ruling elite that brainwashes its population into submission and imprisons anyone whose beliefs are contrary to those of "the state".