If you are not willing to fight for your corner, that is an issue with you. You can't expect the world to come to your rescue.
This is just as true in relationships as in business. What happens when your partner dumps 100 tasks on you and doesn't realise they're being a dick? Will you stand up for yourself? Or there's just some simple situation where the other person doesn't see your perspective?
Life is full of situations where you either stand up for yourself, and communicate, or someone runs you over by standing up for themselves. And they might not do it with bad intentions, it's just that everyone has different interests.
If you aren't assertive, you need to learn to be, or accept that you will be treated unfairly. There are obviously nuances to this entire point, you might be able to outsource your assertiveness to others, like a friend to help you, or a union at work or whatever, but unfortunately there will always be situations in life where you need to stand up for yourself, and if you don't, that's 100% your fault and responsibility, no one elses.
