A person loves his country is fine. But why should it end at the border?

Yeah I am impressed with this piece of line. It speaks a lot of its own. No explainnation required. indeed, a number of p[ages could be written explaing the feeling of this line brings in. I am of the opinion that one should love ones country... no harm at all but at the same time should pay due respect to other countries also as they are humans and whole world is like a big family!! Am i right??