Do you think we should let humans evolve on mars?

Let’s say that we have a habitable sustainable city on Mars, with the humans relying less on astronauts from Earth to replace them. Instead, they breed like we do on earth. Should we let humans evolve on Mars to the point where they become a different human species, where both Earth’s and Mars’ humans are different and appear like strangers to each other, or should we integrate technology that makes them adapt to living on Mars without evolution making them a different species from us?