A scandal of potentially titanic proportions is brewing at the Federal Emergency Management Agency.Last week, FEMA administrator Deanne Criswell fired Marn’i Washington, the official accused of discriminating against Donald Trump-supporting hurricane victims in Florida, casting her as a lone wolf, a bad apple in an orchard full of good ones.Not so fast.On Tuesday, Washington — and another ex-FEMA employee who spoke with The Post — disputed the relatively rosy picture painted by Criswell.According to the recently disgraced Washington, “FEMA preaches avoidance” from potentially contentious situations.And, supposedly, Trump supporters are disproportionately responsible for fomenting such situations.Washington said her team had encountered “political hostility” from those in homes with “Trump campaign signage,” but nevertheless insisted that agency guidance is — and her own determination was — about safety, not political targeting.Another former FEMA employee also told The Post that the processes that led to Washington’s discriminatory action are systemic — and that the bias against Trump supporters dated back years, sometimes justified as part of an effort to serve “marginalized” communities first.You can cite any empirical or philosophical reason that you want to justify this allegedly pervasive practice, but that doesn’t change the fact that it’s not just negligent or wrong — it’s evil.Imagine if it came out that FEMA had determined that homes inhabited by blacks, or Asians, or Muslims, or Jews were more likely to be “hostile,” and should therefore be summarily deprived of aid and support in disaster zones.That would be unthinkable.Yet at FEMA there are allegedly those who would rule out lending a hand to roughly half the country.In the name of safety, or equity, or whatever other pretense they might come up with.If a Trump supporter or two harassed federal workers on the ground in the wake of Hurricane Milton, that’s wron...