Do you think 2021 will end with less police in uniform than 2020? Do you think 2020 had less police in uniform than 2019?
Of course not. This is one of those "trend" stories that is basically inventing copy. Find isolated examples and propose a trend.
But if a police officer feels vilified or unfairly treated, blame the officers who grossly abuse the power society gave them, not the public. Blame unions and the knee-jerk circle-the-wagon attitude that defends these bad apples. If a group abides by and supports the bad apples, they are all bad apples.