Even $100,000 would kill it. If 1 sat (or even 100 sat) == $1 then the fees would grind the system to a halt. The fees would be so high relative to the amount sent, that it wouldn't be worth it. From an investment perspective 1 sat==1$ is a nice round number. From a users perspective, only being able to buy things divisible by 1$ is crap.
This is the exact point. We get into Bitcoin in part as an investment. The miners know this, so they raise the fees to control the price of Bitcoin, along with increasing their profits.
What? I thought Bitcoin was supposed to be decentralized. We don't need miners' fees at all. Miners mine, and get the bitcoins they mine. If that isn't enough profit for them, we need to forget bitcoin altogether, and let them sit with their stupid, worthless bitcoins, 'cause nobody will buy them.
All we are doing is gambling that this time the miners won't raise their fees like they did at the end of 2017 and the beginning of 2018. We forget, so we are at it again... letting the miners lure us into purchasing a bunch of bitcoins that they can quickly make worthless by raising fees.
There are still loads of investors out their who lost their shirts - life savings, the house, their business, etc. - because they thought that an investment in Bitcoin was worth something... in 2017. They have a little hope, now, with the new Bitcoin movement, that they will get their money back. But all the miners are doing is waiting to raise fees again.
Personally, I think it is time to sue the miners. I mean, if they sit on their hoard and don't sell, they won't be able to pay their electric bills for the mining. So, why screw the little guy, and make bitcoin into the "centralized" thing that Satoshi was trying to get away from?
If they do it again, we need to sue the pants off them. After all, they are wrecking the lives of a whole bunch of us when they mess with our investment like that.