This seems to be an "internet bubble" take. Politicians campaign on supporting law enforcement. I travel a lot, both rural and urban, and I see far more thin-blue-line flag stickers than anti-police stickers around the country. (The media hates everyone, eventually.) Police work is like service work in that as you gain seniority you get more control over your hours, so that's not a permanent problem. While there's an element of danger, law enforcement isn't even in the top ten most dangerous jobs in America, a list dominated by tradespeople and truck drivers. As for viral media destroying your life, I've never seen it happen. Sure the occasional officer goes to jail for committing a crime, but I've never seen an officer who had to give up his or her career because of viral social media nonsense. Many of the officers who are "convicted in the court of twitter" wind up compensated for the trauma of going through that experience, which is about the best you can hope for, since anyone (cop or not) is subject to a viral tarring-and-feathering these days. But they're not prohibited from continuing in their career because of the experience.

Anyway, I have lots of friends in the law enforcement world, and almost all of them are happy with their careers.