If you believe in freedom (and most modern-day people do not), then you believe in freedom of self-determination. That means people should be allowed to decide what kind of government they have or don’t have. It’s what separates us in the Western world from places like North Korea.
This means that if a certain state, province, city, or whatever within your country wants to declare independence and break away from your nation, you should let them.
If Scotland wants to be independant of England, let them.
If Texas want to scecede from the United States, let them.
If Quebec wants to break away from Canada, let them.
If Larry, one of your neighbors down the street, wants to move out of your neighborhood with some of your other neighbors and form his own neighborhood, because he thinks the leadership in the neighborhood association sucks, then you should allow him to leave. That’s his right as a human being. Then you should look at your neighborhood leadership and ask what they’re doing wrong, since by their actions they’re encouraging people to leave the community.
What you should not do is threaten Larry with force and command him to not leave, because the neighborhood collective needs his house / person / tax revenue / vote / whatever. That’s totalitarianism. Larry should be allowed to determine what kind of government he has. And so should you.
I disagree with most of the political opinions of those in the Scotland independence movement, just as I do with those people in Texas who want to secede from the United States. Doesn’t matter. They have the right of self-determination, and limiting this is not freedom.