Agreed, Why anyone would be heavily invested in an artificially capped currency that most people can not use is beyond me.
Remember a fee market does not work. A fee market simply prices people out, it decides who can use and who cannot use Bitcoin.
It is not "beyond you" to understand this. It is pretty elementary.
1. You can understand pretty well the concept of abuse.
2. You can understand that not 100% of humanity is dependable to behave in a good manner, 24/7/365.
3. If you leave the option of free and totally unrestrained use of the blockchain then it's just a matter of time before the blockchain is bloated to infinity by some script kiddie who creates some script and lets it run continuously and adds tens / hundreds of gigabytes of spam, "for the lulz"...
4. You can now fully grasp that fees and "limitations" are what prevent system abuse that would have already rendered BTC a swift death.
5. If you have a better solution for the problem at hand, please present it.
The question you pose is actually reversed: Who would actually be invested in a joke currency that a script kiddie can render it useless for the lolz?