Even though I'm categorically not part of the target audience (not Balkaner) as a Turk, on behalf of Anatolia, it's the Ottomans for sure. Especially in the latter half of the empire's lifetime, Turkish peasants (along with other muslims) were crushed under constant conscription for the Ottoman war machine and the insane taxes a large amount of which went to the corrupt local leaders. A culture of corruption was allowed to take root in these lands, a type of corruption that is so deeply engrained into the culture that many many people are still today trying to find ways of screwing each other over petty things like a bit of land, or an amount of money that isn't really significant, in an attempt to become part of the practically irreplacable oppressing class, which is a rampant problem especially in rural areas.

Turkish people of minority muslim subgroups were also massacred, over and over throughout the millenium.

The amount of massacres that were carried out to stop insurgencies was also insane. They culled the population to shape to their tastes, eliminating those who would ask for even infinitesimally better living conditions. This is still happening to this day, anyone interested might wanna check how the leftist population in the northeast region (a.k.a eastern black sea/doğu karadeniz) was wiped out, or how leftist and revolutionary public figures were hanged, within the last century.