A number of people have responded “well if there are open borders, can’t you just move?”

However, if your culture has low crime and lots of money, then those are very desirable qualities and people will follow you, even if their cultural practices generate more crime and less economic value. Eventually you will have to make yourself so toxic or live somewhere so otherwise naturally terrible that it isn’t worth the price to follow you, otherwise there will be nowhere left to run to.

There are ways you can manage this and still have higher immigration, but not if you flat-out refuse to acknowledge the trade-off even exists. Singapore could be considered an example here.