Imagine feeling the need to publicly display support for a persecuted group of employees who uh… have great salaries, pensions, benefits, robust unions, media support, and no legal accountability. It’s like if I felt the need to defend Britain’s Royal Family.
I mean admittedly that presumes some sort of good faith argument about policemen, rather than trying to signal far-right-of-center politics and realizing that dropping ethnic slurs doesn't make you sound like the good guy. But hey, people think evangelical Christians are a persecuted religious group in this country so it's entirely possible they're sincere.