I came across an interesting definition of socialism in a fantasy-fiction book (the definition reflected the author's views). In a nutshell it put forth that 'social rights' are considered more important than property rights. That of course translates into ideas such as giving over your home to squatters if they don't have as nice a place to live as you do - at least in the minds of people who believe this. Again, of course, the people who believe this think that the homes being given over to these people will be someone else's. You are right that open borders will breed shit holes. In my city of Montreal, all the fake 'refugees' (people 'fleeing Trump') are now putting such a drain on local charitable food banks that they are running dry. This means that people born and raised in this city who need some assistance are in competition for what little there is. In effect, it is the most have-nots of our society who are paying the price and being forced to give up what little they have, and not the people who flock to the borders to welcome these illegals with open arms. The naivete is sickening.