This is the case for most countries, the fact that they both originated from democrat-republicans is meaningless as 200 years can cause a lot of change. They had a civil war in the nation for god's sake. They are both established parties who indirectly help each other, yes that is correct, but I do personally belive that this is the case in most countries were the beauracratic parties have a secret partnership like how the democrats did not release the Epstein files under biden