"What if satellites are just auto-pilot drones?"

Very off-topic, but the right place to ask.

I was thinking about people who deny the moon landing, or the Earth being round. One of the arguments against that is the existence of satellites. Putting myself in the deniers’ shoes, it begs the question: Couldn’t satellites just be auto-piloted high altitude aircraft? I mean with government funding, you could surely build something of this nature to sustain that length of time in “space” or whatever deniers call high altitudes regions.

Have any of you thought about this?