Re: Institutional investors are buying Bitcoin's future... How do we stop this?
What happens if transactions on-chain are replaced with off-chain transactions in ledgers? It reduces the available supply of coins
Off chain transactions and hoarding could inflate the supply of coins.
ETFs and exchanges could utilize a fractional reserve approach. In terms of them issuing ownership for a higher number of crypto assets than they hold.
Tether's approach to reserves is one we may be wise to demand from off chain ledgers.
How can we stop that from happening? ...... Let's discuss, because this will be interesting to see how we will be countering this unintended attack. 
It can't be prevented.
The only answer is to continue to research, learn, build, invent, innovate.
In the belief new inventions and innovations will continue to open doors. Present new options and opportunities to society. Which will elevate standard of living and pave the way to brighter tomorrows.