I'd like to see more separation. If we are to keep indirect democracy, at least have separate representation for criminal law, economic decisions (taxes, healthcare, ...), social decisions (abortions, marriage, ...), etc. But even where to draw the lines is difficult. I think that too should be in some ways decided by voters.
Of course, in a country which can't get rid of FPTP/plurality, despite being objectively the worst voting system[0-3], that's never gonna happen. If you need to explain math to people to convince them, you've already lost, because people are not smart enough and definitely not educated enough.
[1]: https://80000hours.org/podcast/episodes/aaron-hamlin-voting-...
Oh and Switzerland has 7 presidents (effectively). No kings, no dictators.
That isn't to say we should use something other than representative democracy. I believe the best option is to fix the system rather than replace it. However, it does explain why people currently feel they have very little power of the laws that affect them.