Yes, rip rap is good for stopping the erosion of your shoreline. It stops the erosion of beaches caused by waves.
Remember that erosion could cause a loss of property, but a solid-made rip rap seawall can control the erosion with concentrated runoff. The big, loose, and angular rocks used to build a seawall can safeguard your home and property.
Rock revetments are essential because your house could fall into the water if you don’t do it.