I don't know why people here want to associate so much negativity to secession, outside of their centralized government ideology.
Those who love a UNITED States despise secessionist ideals. There is a firm line between being supportive of state's rights and wanting to sever union with this nation totally.
However, there is no requirement that one who loves the United States opposes secession. Loving an area does not necessarily mean wanting to be politically joined to it. I am sure that there are many Americans who love the United Kingdom, but how many of them do you think want to be united with the U.K. under one government?