It really doesn't. Most people do not travel abroad often, and a considerable number don't ever (i.e. do not own passports). My mind utterly boggles as to why people would prefer to accept all the social distancing faff (or risk posed by the virus, if you advocate abolition) over simply not taking a couple of trips a year abroad and having to take them domestically instead.
You are presenting a false either/or here yet again! Removing the current restrictions is not tied to border controls. We know that you are a big fan of New Zealand, but as a country heavily reliant on international tourism they won't be able to keep it up for very long.
And as regards going abroad, I don't, so not being able to would make absolutely no difference to me - but I can see how important international travel is to the economy so preventing that (or imposing quarantines which will kill off much international travel) is not workable.
