@Lesley Resnick A lot to unpack here.
1. If you borrowed 2 bitcoin using $100k of borrowed money and it doubled in price, you would have $400k in bitcoin and owe $100k + interest. This would be leveraging a weak asset (USD) into a strong one (BTC) which is exactly what every prudent investor should be thinking about. Bitcoin and other assets will go up FOREVER denominated in dollars because the money supply has no limit. Try charting the stock, housing, or commodities market in bitcoin or gold and see what you get. It's quite the inverse of what most people see in dollar terms.
Hate to break it to you, but the reason your house, sports cards, used car, gas, etc. went up 40% last year isn't that they got 40% better, USD got 40% worse. Looking at purchasing power rather than price when compared to the dollar is a more accurate indicator.
2. What defines a fiat currency is the way it's governed. It's the principles of bitcoin which make it valuable, not the numbers, or even the price. The real value of bitcoin goes far beyond making a bunch of 1st world people rich. I've touched on this a bit in previous posts in this thread if you'd like to review it but I'd recommend diving deeper here. This is really the meat and potatoes of the Bitcoin thesis.
3. The concept that bitcoin can be hacked is a common misconception that keeps coming up. THE BITCOIN NETWORK HAS NEVER BEEN HACKED. Every clickbait media article claiming it has is referring to user error, not issues with the system. How many times has Visa's, Mastercard's, Venmo's, and world govt's centralized servers been hacked? Bitcoin and public blockchains are secure because the goal isn't to keep the information safe, it's to keep it true. Information is shared and spread so thin across so many different parties, there's no consolidated attack vector.
Please see my post from yesterday about bitcoin's security, but it ultimately comes down to responsibility. If you don't trust yourself pay a professional custodian and trust them.
4. DING! Going to call a fact check on this one. The biggest winners in digital currency are not criminals. There's actually a lot of evidence showing an extremely low percentage of transactions on the bitcoin blockchain (0.15%) are related to illicit activities. Bitcoin like most public blockchains is fully transparent meaning anyone can see every transaction all the way back from the genesis block in 2009. Criminals are smarter than you think.
5. Bitcoin is immutable and uncensorable. Bitcoin has and needs no kings, leaders, or governments to operate, just the internet, electricity and a collective group of actors participating in the incentive structure. Governments cannot "take over" bitcoin. They can make it difficult to engage with but cannot shut it down. Many have been trying over the past several years and they will continue to do so at least for the moderate future.
Governments will surely make their own digital dollar but this comes back to the underlying principles of money. A dollar in digital form is still a dollar losing its value to inflation over time. A central bank digital currency (CBDC) also opens the door for serious privacy concerns for citizens. Everyone (including governments) is better off with a decentralized form of value that is immune to corruption, coercion, and manipulation.
6. The people who have confidence in bitcoin (most of them anyway) are those who have done the work and spent the time understanding it and its relation to the existing financial ecosystem. I don't think I've met anyone who is anti-bitcoin after spending at least 40 hours really diving down the rabbit hole.
You're well on your way!