yankel, flaws in the system don’t have to show up at the beginning. If they were to be foreseeable, they would have been fixed. In the American example, FDR attempts to pack the courts 100+ years later. Also, Israel was more or less a one-party state for the first 30 years, so democracy moved forward from those times.
Maybe during your free time, read about roman republic – they had lots of different rules and diffused centers of power – dictators elected just for a year; tribunes representing lower classes; etc. And everyone was always scheming to get more power. This is nothing new. So, as much as I agree with you that SC is wrong, I suggest that you try to build a broad coalition with others. That might require putting aside some of your demands that others see as extreme.