I also would not be fine with it.

Having a barrier to entry is what keeps most of the dipshits out. There are dipshits in every country. I don't want to have to deal with another country's dipshits - we have enough to deal with on our own.

Exactly what the barriers to entry are should be reformed so that they make sense and allow all people in easily if they meet some straightforward requirements.

Borders have existed since paleolithic tribes staked out perimeters around their camps and established hunting territory boundaries with other tribes. Is it possible that we will someday live in a world completely free of restricted travel? Sure! But abolishing all barriers to entry across national boundaries tomorrow with a snap of the fingers would be a disaster.