There are a lot of people that are upset at the prospect of being let go and that's understandable. But the reality is that no company is loyal to their employees and no employees are loyal to a company. The company is going to look for people to help them get their products to market faster and the employees will go to a company that pays them the most $$. The times of starting as an intern in the mail room and becoming CEO are long gone.
No matter what your position and/or company it's important that you keep educating yourself and developing skills that make you valuable (as an aside, running meetings isn't a skill). GM isn't the only company downsizing (SpaceX, Tesla, etc - all companies/all industries are shedding employees) - the question will be what are you doing to make yourself considered critical/valuable.