And all perfectly addressable. YIMBY policies typically addresses housing first, but also understands that parking/traffic issues also happen when cities grow in size. The NIMBY point that "these things are bad and will only get worse!" presumes that there's not changes made to address those as well (increased public transit, bike initiatives, parking garages).

That said, if your issue is strictly xenophobic/culture shift, sorry but you can't legislate demographics (and maintain a moral high ground). The idea that new people will have a higher rate of criminal behavior, this can again be addressed with deterrents towards criminal behavior rather than deterrents towards population growth (which isn't going to be stopped, just exploited using by those in control of the current housing supply)