Right. But only Congress can create and regulate those Militias, set up to fight back against Foreign Invaders.
That claim is not supported by the constitution.
What you are proposing is that any people who do not like their government can create Militias, arm themselves and revolt against that government.
I did not propose that. The founders did. That was a few years after they had done exactly that. They wanted to make sure future Generations could do the same if the government they created became a monster and needed to be done away with.
That is called An Insurrection. And if one simply disagrees with one government and wants to bring it down, it is a Coup.
Theoretically, quote one unquote could attempt to bring down a government that that one person disagrees with. Obviously that would fail.
The founders provided for expressing disagreement through free speech and through Fair voting, something not particularly respected anymore bye a large portion of our leadership. The purpose of militias, among other things, is to be ready in case the government ends free speech and fair elections. That is tyranny, and subject to overthrow. By the people, thanks to their right to bear arms not being infringed.
Suppose Donald Trump somehow was able to rig the 2024 election and be elected even though the overwhelming majority of people opposed him. Not saying that could happen, just suppose. You would not be willing to take up arms against such a dictatorial regime?
People before the 20th century, needed arms to protect their lives and their property. It was not a matter of fighting a foreign government, as with the American Revolution.
We no longer need arms to protect our lives and property? Have you visited a blue run city, lately?
Is there a need for non Congressionally approved Militias, like the National Guard, in present days?
I'm not sure if you mean do we need the National Guard. I would say yes, but it has been abused in the last couple of decades by being sent into the endless Wars along with regulars.
If you mean malicious other than the National Guard that decision is clearly left to the people and the states respectively. Guess where I got those words? My state, texas, has a Texas State guard which I believe has no funding from congress. Several other states do as well if I remember correctly. And of course we Texans make good use of our right as people to bear arms also. I would say the latter is definitely needed. I'm not sure about the state guard, but on paper it seems a good idea.