If it comes down to which side spends more money, then there's something wrong with it.
California has a long and happy history of badly-conceived but very-well-funded propositions going down in flames. Prop 33 in 2012 comes to mind, losing badly despite $17m for and only $275k against: https://ballotpedia.org/California_Proposition_33,_Automobil...
Noted. However we could remove the question entirely by limiting advertising/funding for propositions. I realize that's a short answer to probably a long question, but I'd like that experiment.