Anything can be labeled a "waste of money." I don't believe supporting space exploration and seeking to streamline the military in the process is a waste of money. I believe any money we spend here, if spent wisely, is well worth the investment.
Some believe this could save money in the long-term by again, streamlining the system. But sure, further space travel and exploration will cost money. It is worth it in my opinion though.
I just hope you aren't opposing this simply because it is Trump making the proposal.
His own people said no it’s a bad idea lol