The fact that there is a mathematical solution to the Einstein Field Equation that describes a white hole does not mean white holes actually exist. There are an

The fact that there is a mathematical solution to the Einstein Field Equation that describes a white hole does not mean white holes actually exist. There are an infinite number of solutions to any equation in physics, the vast majority of which describe things that do not exist. We have to make actual observations to find out which of the vast number of solutions do describe things that exist.