To all the people that have to work to survive

But no-one can replace me! I'm the only snowflake of my kind!

They'll also replace you in a week if you take time to take care of yourself though

What are they supposed to do? Find a job that would do the same thing with slightly better hours?

Well that's because most jobs are created by businesses whose goal is to make make money. The job is not there so you can get paid, it's so that the company can run and make money. If without a worker they would lose money then they'll replace the worker as soon as possible because again all businesses are out to make money. This concept seems be lost on a lot of people or they would really prefer not to acknowledge it because it tends to reduce their own self importance.