I agree completely. I believe I should have the right to carry and defend myself in any state in the Union.
However, we both know that realistically and unfortunately that isn't the way it actually works. If I want to stay out of legal trouble, therefore, I have the responsibility to know what the laws are wherever I'm going. That information is readily available on the internet; anyone traveling would do well to access it and become familiar before traveling.
I believe I have the right to carry and defend myself anywhere on the planet.
I make my mother a booklet of laws for the states she travels so she has it as a handy reference.