From movies and tv shows all saying that men are trash, that only care about sex, buffoons that need a woman's intuition to guide them to outright sexist laws that punish men. A good example of misandry in society is Amber Heard and Johnny Depp scenario. Amber heard just had to say Depp abused her and inflict a minor bruise to her face in order for people to believe her. Society then turned on Depp and he got cancelled just from word of mouth. It took video/audio evidence + women coming forward to defend him to sway public opinion.
In other instances of harm against women (e. g. rape) even if the guy is proven innocent later, people don't care and will continue to view said male as a rapist. Example, Columbian student, Emma Sulkowicz, accused her friends with benefits of raping her. He was quickly deemed a rapist by his university and kicked out, just base on her word alone. After being found innocent, he received no compensation and was just told to move on with his life; while still being viewed as a rapist by those unaware of the final outcome of the case. Ugly to average men also have their rights infringe upon by just EXISTING. Benjamin Reeves, former CEO of peak industry was accused by a model, Simone Holtznagel of stalking her. He was dragged to court and they needed video evidence to show that everything Simone said was a blatant lie and did not happen.
We also often feminist show blatant misandry both online and in person. Feminist will rejoice and gain pleasure in seeing men suffer, discriminated against or even rejoice at hearing about men dying. There was even a peak point in society, where feminist were actively posting themselves with mugs, that read "male tears" when it comes to male suicides. And no one called them out on it, and it was allowed to trend.