If the slaves complained, they were pushed and punched. If they wanted to rest, the slaves were forced to wake up even earlier the next morning. Moses met with the Pharaoh. They argued for hours. They argued for days.
Slavery is wrong.
Freed slaves might declare war on us. These people are not interested in fighting. They just want to be free. When that happens, you won't be very popular. For a long time, there was silence.