Do protest if you are confident on returns, otherwise quietly quit.
In our daily life, we all undergo different kinds of argument with our co-workers, family members, friends etc.
An argument could be constructive or destructive. Constructive is pretty clear, i.e. if we want to make something clarified we will argue and come up with outputs.
Destructive arguments happen more frequently or rather naturally. Somehow, we will be tempted to do it, forgetting about surroundings, outcomes etc. There is no value which we gain out of such argument, rather than simply losing our energy and finally ending up with some sort of negative vibrations around us.
If those assignments are of planned stuffs, normally we will have some expected results- may be positive or negative. For unplanned arguments, initially we won’t be realizing that we are falling in to it. But definitely after a moment, we will realize that our voice is increasing or temper is getting lost. And at the very next moment, just analyse the direction of argument. If you are sure of returns, continue the argument. Otherwise simply quit.