I somehow don’t see how letting an accused murderer carry heat into a court room with his homeboys is likely to end well.
Perhaps you would also suggest that convicted felons in jail also should not be deprived of their rights?
If you want to move to Antarctica and set up your own lunatic government, feel free. If you want to run for office, and change the rules of civil procedure, go for it. Perhaps you can convince a few other lunatics in your county to go along with you. The rest of us will sit back and watch the show.
If you want to claim that the laws, as enforced by judges over the limited confines of its courtroom, or in jails is somehow a violation of your rights, then run for office, make that argument to the people, and try to get elected on that basis.
Good Luck!
You obviously don't realize that Jurors must appear (punishable by law) though they have not even been accused of any crime; same with witnesses.