The most direct answer to the question posed in the title of this piece is that Democrats behave the way they do simply because they are Democrats, but there’s a further and deeper answer to the question.
The best way to understand the reason Democrats will take any opportunity to make citizens fearful and will attack anyone who speaks positively about life and the future of our nation, was an exchange we saw months ago between President Trump and our leftist non-press. When covid popped into the headlines, President Trump tried to reassure Americans by asking them to have faith in the future, to be optimistic and have courage as the Wuhan disease works its way out of our lives, which it eventually will do, via a vaccination and/or herd immunity. But the leftist press, and Democrat governors, immediately rejected the idea of ever being free from the pandemic threat, and called it something that can’t happen for years to come, and it will likely never happen.
President Trump was immediately attacked from all corners of the leftist establishment and was accused of lying to the American people, and that he should not fill them with any false hope of avoiding the disease, but should instead instill fear, negativism and hopelessness into them, which is the line picked up by Joe Biden when he predicted a “dark winter” ahead in his administration, filled with lockdowns and forever-masking.
Another example of Democrat negativism: Democrats across the board have promised to get rid of law enforcement officers. So there will no longer be trained, armed personnel to come to our assistance in an emergency. Instead, Democrats see inevitable and on-going death by covid, constant rioting and burning of our cities, rampant crime, confiscation of weapons used for personal self-defense, further disenfranchisement for anyone who voted for Trump, and a life-time of joblessness via economic shutdown orders from Democrats.
Leftist politicians and the radical, leftist press depend on discomfort, fear of crime and a constant fear and expectation of contracting the covid virus as a way of making the population dependent on big government for protection and for a low income, welfare subsidy to keep masses of Americans just above the poverty level, and yet be too poor to be independent and successful on their own.
Keep people unhappy and in a state of fear, and they’ll vote for the leftist candidate every time, if they‘re stupid enough to believe their lies. That’s why Democrats endorse masking, lockdowns and the defunding of police forces, because leftists have always treated their subjects like cattle to be herded into a mass of fear and kept under constant control, and it keeps miserable people dependent and voting for the only option they have left to feed themselves and their children: big, intrusive, government.