All of those things need to be launched from earth, that is still expensive. Then transported to Mars, expensive. Then landed on Mars, expensive. And then you

All of those things need to be launched from earth, that is still expensive. Then transported to Mars, expensive. Then landed on Mars, expensive. And then you land your digger, at a cost of at least a couple 100 million, and you have a dumb robot that digs a small hole? We should do industrial build up, but for me that starts with solving cheap transportation from earth to Mars first. Then you can hope to bring things like nuclear reactors, that can actually produce the power you need significant work. Currently we are going for science reason and very few people are even working on going with humans or industrialisation.