What are you trying to say?

I suspect his point is that due to sending rovers to mars, there likely is life there, now at least.

Exactly. Actually it is near certain that there is life on Mars now since we know the spacecraft sent were not sterile.

Why are you so sure? Are you an expert in extremophile metabolism? I find it very unlikely that an Earthling could survive in Mars, microorganism or not, it would be a chain of miraculous events for an Earthling metabolism to find enough processible energy in Mars.

But it's a godawful small affair