"In the long term, yes. But before we can build..."

In the long term, yes.

But before we can build an off-Earth colony, we need to expand our mastery of shelter-building dramatically, to accomodate for incredibly hostile conditions.

By the time off-Earth colonization is at hand, the shelters we'd be able to make here would be unbelievable, especially if we chose to focus all resources on shelter-building rather than also work on the massive undertaking that is interplanetary transport.

So for anything but long term, no.