The Declaration of Independence was followed by the War for Independence.
Secession would lead to war, as it did in 1861.
Further, you need a Robert Morris to finance secession.
https://en.wikipedia.org/wiki/Robert_Morris_(financier)
Robert Morris Jr. (January 20, 1734 – May 8, 1806) was an English-born merchant and a Founding Father of the United States. He served as a member of the Pennsylvania legislature, the Second Continental Congress, and the United States Senate, and he was a signer of the Declaration of Independence, the Articles of Confederation, and the United States Constitution. From 1781 to 1784, he served as the Superintendent of Finance of the United States, becoming known as the “Financier of the Revolution.” Along with Alexander Hamilton and Albert Gallatin, he is widely regarded as one of the founders of the financial system of the United States.
...
Morris’s shipping firm was just one of many such firms operating in Philadelphia, but Willing Morris & Company pursued several innovative strategies. The firm pooled with other shipping firms to insure vessels, aggressively expanded trade with India, and underwrote government projects through bonds and promissory notes.[11] Ships of the firm traded with India, the Levant, the West Indies, Spanish Cuba, Spain, and Italy. The firm’s business of import, export, and general agency made it one of the most prosperous in Pennsylvania. In 1784, Morris, with other investors, underwrote the voyage of the ship Empress of China, the first American vessel to visit the Chinese mainland.
Why lead to war?
Secession is exactly what the “War for Independence” was.
There is no way the Founders would forbid it.
The so-called Civil War was states wanting to secede, but the Feds not just letting it go. Hence - war.
As was the RevWar. Which BTW was already in progress, not “following” the DOI - that was a year later.
The idea is you declare displeasure, and agree to separation. That should not have to mean war.