Burning the flag of an enemy nation which only existed during a war with the USA seems fine with me. Whatever you want to claim about "historical significance" is ridiculous. That flag has been used as a symbol of racial subjugation and racial terrorism since its creation.
It doesn't matter if it's fine with you or not, we have the 1st amendment in this country. The flag is part of our history, and you don't have the right to not be offended. Liberals are some of the most intolerant people in the world and you prove it every time you try to force your will on the rest of society, regardless of what the Constitution says.
Liberals aren't intolerant. The Rebel flag has been flown rebelliously on various public monuments for more than 140 years after the resounding defeat of the Confederacy. That is far too long but "liberls," and other people of good faith, bowed to the sympathies of descendants of a defeated enemy. Their tax dollars spent to support an enemy flag. Speaking fo forcing someone' will on others, I think it is time to stop forcing Americans citizens to have to view that confederate rag every time they visit the capitol.
What is really surprising is that you are so attached to an alleged Democrat relic after all your crying about Democratic plantations and KKK origins. Perhaps , though, it is the pending loss of Southern Democrat Conservatism tied to that flag that really bothers you more than party affiliation.