If you take recent history (anything from last 5 to last 20 years), ownership, etc. in to account, I think that the Raiders are by far and away the absolute worst franchise to be a die hard fan of.
Clippers, Browns, Washington Redskins/Commanders, Indians, etc. I don't think it's remotely even close. I remember how it used to just be futility, and every season was hard but you'd sit there next to Browns fans and lament together over who had it worse.
It went from jokingly bad to a down right horrid, nightmare of an experience. I'm not being facetious or over the top, I'm honestly slightly surprised that a deranged or mentally unwell fan hasn't attempted to end Mark Davis' life. I know it doesn't have the same level of shock, but I'd prefer Jim Irsay's move of the Colts in the middle of the night from Baltimore to Indy 10 times over compared to Mark Davis deep, slow, continued twisting of the knife.
There's franchises that perform poorly or are dysfunctional. Then there's the Raiders - continually making conscientious decisions that ignore all history, tradition, values, and everything else in exchange for wealth. Mark Davis is 68 years old, increasing net worth by 1 or 100 or 1000 million dollars shouldn't matter over family's legacy.
It's like a horrid Greek tragedy story comedy or Shakespearian level betrayal, taking something as beautiful as competition found in sport and destroying it piece by piece.
Screw sports ownership in general and Mark Davis specifically. Raiders suck, dead to me, fricken corpse of a team and community.