they won't destroy it as long as they're profiting from it and even if they wanted to, they'd have a hell of a fight on their hands at least for now
they'll just bring in more immigrants, illegal or not, doesn't make a shit to them because they know they'll a) vote for them and b) spend their money at their companies because it's the trendy thing to do and that's how to blend in to the herd
that's why they push polygamy these days - just go out and there and fuck anyone and everyone, doesn't matter about settling down - if you get stds, fuck it they'll profit from the meds they keep you on, if you have 10 bastard children from 7 different baby daddies all the better, chances are some will make it into the adoption biz which is also big money, etc.
the difference between now and the 50's were families wanted to keep what they earned in the family and build their business as opposed to working for globohomo which is more often than not one of the few main choices left for the plebs to do
it's fucking sick what they've done and all for profit/greed