@YoMomz
Not purging them through violence
Just stop using fraud and violence to make people do work to give to other people without their consent if they have done no wrong
This will cause people who use fraud and violence to take from people what they produce to not have the resources to multiply and "support" a family via enslaving others but only to support one other ways
This type of artificial selection would produce a safer society to live in than artificial selection through welfare
@YoMomz
It can also mean other things
If you do not like a culture where men kiss each other on the lips as a greeting for example you should be allowed to not do business with any men who do that and to do business with men who do not do that
Then the men who have the undesired behavior will be poorer
And in the future there will be less men who do that in the society
It can be whatever behavioral trait you want to eliminate or support existing in the future