What is toxic management? How to aviod it Employee Part 3

I have discussed in the 2 previous parts about toxic management how to spot it and stop it as a boss.But what about the Employee?
They can be stuffering under toxic leaders but how do they stop it? That not going to be easy is it? After all it is very unlikely just telling the toxic leader their toxic is going to result in anything other than making it worse.Yes in some case it can work if it is simply the leader in question is unaware of the effect of their action you would have to weigh this up against your knowledge of the person.It may be better to get some else to talk to them like their boss go above them discreetly and discuss your concern with the next in the chain.It is possible they were aware of it and just need one more piece of info to act.In some case this will be a safer way to go about it but it also needs weighing up a toxic leader may see it as going behind their back and undermining them if they become aware of it and again make your lot harder. It can be a mine field for the employee.

Any suggestion or ideas please add them in comments
Thanks for reading be sure to check out part 1 and 2 of the toxic management series