First of all, it is a republic and not a democracy. The difference is quite important. Secondly, to attribute the problems to the constitution is mistaken. That founding document is the only thing standing in the way of a complete and total disaster for the country.
Nearly all the problems can be traced back to where politicians are ignoring the constitution in part or in full and thereby eroding the public protections built into the republic.
Nearly all the problems can be traced back to where politicians are ignoring the constitution in part or in full and thereby eroding the public protections built into the republic.