Isn't this getting a bit silly? People are entitled to do what they want if regulations allow!
Yes, we did all have holidays abroad before we entered the EU but a) the world has changed/numbers of people travelling/population increase means that the situation is NOT the same and b) it was not that easy to travel abroad anyway, many fewer people did it, it required international driving licences, Green cards, different insurance arrangements, health cover, visas and things we no longer have to think about or won't have to until 31st October.