Molly supports Tonks and Andromeda as well as Leon, though she doesn't know Leon nearly as well.
She also thinks that it would be best to get them out of the country rather than a tract of land here. The last war lasted years, and she doesn't think it's fair to ask them to put their lives on hold, also, if they are able to connect with people in other countries those people may be more motivated to rally their governments to fight the current ministry. It's much harder to ignore an actual person telling you what their thoughts are than a newspaper article or something more passive.