It's hard to get 100 people to agree on anything (even non-Splinterlands stuff) but that's okay. We don't need 100% consensus. And while democratic principles like representation and having concerns being heard are important, you also don't want simple mob rule.
I think the least controversial proposals I suggested would be: readjusting the season reset for Silver I. And keeping Kobold Tournaments for newly created accounts.
The issue with the entry fees is that the majority of players don't actually have to bear the brunt of them - only a minority actually end up paying the fees. The fee system means that most players only pay the discounted 10 DEC fee and don't actually have to experience the pain of higher entry fees.
Right now, most leagues have 2 regular tournaments + 1 gold foil tournament each week (it's a bit of a simplification). But because most accounts play tournaments in more than one league category (average of 2-3) you also have to factor that in.
What you seem to be suggesting is along the lines of mutually exclusive tournaments (#10) combined with league exclusive tournaments (#9). It does mean that Splinterlands has to create a lot more total tournaments (though I guess on average the amount of play time for a given account doesn't change too much).
One potential issue is that the reality is that people's different collections (All Edition vs Alpha vs Untamed vs Gold Alpha) aren't always in sync. Some might be in a different league category than the others.