The more fuel you bring the more fuel you to have to burn to move it.
It’s about energy density. We need an extremely small power unit that can outclass our most powerful rockets by many orders of magnitude.
Till that happens, space will be the province of governments and very deep pocketed individuals. Additionally with rocket tech, it’s hard to overlook the fact your riding a controlled explosion. Imagine trying to get flight insurance.
I believe humans will own space eventually, but it won’t happen with petroleum based fuels. I suspect we are missing fundamental physics on gravity and magnetism. The rate we are developing thinking machines, we may eventually create an entity that can see the solution, or maybe the next bored patent clerk will have an Epiphany.
Fuel is cheap. Relatively small rocket companies have demonstrated this already. Most of the cost is either a massive white government elephant or replacing a rocket stage every flight. The fact that Spacex nearly recovered a first stage using a controlled re-entry and soft landing is quite significant and historical.