Unfortunately for you, the term
"burden of proof" is a well defined term that you are trying in vain to ignore.
A good example, where the burden of proof can be made next to impossible, has occurred during the House Committee investigating Hunter and Joe Biden. Recently, they have asked to see the recording of President Biden's interview with the FBI, where he was released from his classified document liability. Trump gets a different shake from the system, with far more scrutiny and even Court. The House wants or see for themself what made the difference.
The burden of proof by the House, needs that video tape, but the DOJ is not being forth coming. Does this means you can tamper with the burden of the burden of proof and make it harder or impossible? When you deal with crooked people, proof is often hidden or destroyed and it becomes a burden trying to get that proof. It takes years to get Freedom of Information Act requests processed. In the mean time, the crooks continue, assumed innocent; even though they foot drag evidence and add extra burden to the burden of proof. Is that proof of guilty? Innocent wants a speedy trial, while guilty tries to foot drag and run out the clock.
A more recent burden added to the burden of proof, was the RNC wanted all the testimony of the Jan 6, kangaroo court. It took years to get access to all the interview data, so their investigation would not impact the Kangaroo Court and the political advantage gained by that scam. When they did finally get access, much of its was hidden behind fire walls, encrypted and even missing. They did find where Nancy Pelosi blamed herself for the riot since she refused the National Guard, like Trump said. As long as that proof was hidden, by adding a burden to the burden of proof, another scams could be run, like blame Trump, and not Pelosi, where they had the burden of proof; confession.