The currency doesn’t affect inflation? If every day the number of usd doubles, would that increase inflation, decrease it, or keep the value the same? That is extreme, but it should really clear things up for you.
You are right that if there are less oranges and the same demand, then oranges will go up in price. Now apply that same logic to the currency itself. If there is more of a currency and not more demand for it, should the value of that currency go up or down?
This really isn’t complicated economics, I guarantee that if you crack open any intro to economics textbook, you will have your current understanding completely annihilated.
Bitcoin prevents the arbitrary creation of new currency by a single powerful entity. I don’t know who told you that creating tons of usd can’t affect inflation, but you literally will find no economist claiming this. This isn’t in the slightest a disputed claim. It seems like you’ve come into economics through some sort of anti-crypto mindset, and now you just assume that anything you heard from a “cryptobro” must be the opposite of the truth. Just take a sec to think about how people who are always wrong have created the 9th most valuable asset in the history of the world. Maybe your armchair hunches may need an adjustment.