You can be elected, govern badly and lose popularity. You can be unlucky with factors beyond your control creating problems (2008 WFC, covid pandemic, natural disaster hits your country). Those things cost popularity.How can majority of Turks see Erdogan as the worst president and yet they voted for him just about two years ago? If anything, Turkiye's economy has improved since then. Inflation has been falling for 9 straight months.
Inflation in Turkey? IIRC Erdogan wanted low interest rates. Inflation spiralled. Eventually someone competent was appointed to manage inflation. Since then inflation has fallen. No credit is due to Erdogan for reducing inflation.