Basically the capitalist system is f*cked for the vast majority of people..
Not so sure about that. It's f'd in some countries. More so in some than others. The basic problem is that manufacture tends to go to cheaper countries however as living standards improve the cost of their stuff increases. The buyers of the products finish up mostly importing.
The UK has a financial aspect which is there for historic reasons. That leaves service sector jobs and design. Dyson is an extreme example of design. Succeeded eventually and did make in the UK. The trouble with making is that what is needed has to be around, Specialised parts and materials. Eventually he was importing so much that it didn't make sense to make here. He will be profit motivated as well. The extra parts etc are other businesses so there is a sort of spin off and probably more spinning of those. The car etc industry tends to work that way. Some of that has been down to being in the EU. Value has been added here so can be sold tariff free in the EU. I assume that still applies.
People here can design stuff and say have it made in China and then sell it. You may have heard of kickstarter for instance. Trying to do the same thing entirely here is far more difficult.
Don't get me wrong we can and do make some stuff here but there is a big wide world out there looking for business. Ideally they need to make stuff that lots buy and sell world wide That is even harder. Often millions need to be put in to develop what ever it is and plant to make it.