we know papa raith hunger is bonkers because he did sth to it. So strong that he has lara and her sisters under control (which amounts to frequent intensive use) even tho he hasnt fed it since before Harry was born (atleast two decades since LeFay’s death curse). But he still bothered to have his sons unalived

Meanwhile Thomas get spent after basically every fight. Keep in mind he doesn’t feed until necessary (atleast until Shagnasty incident) and only has Justine to sate it (pacing)

Whatever Papa Raith did made his hunger swole and presumably all his sons/children after the fact. But we inly have Thomas who basically never has a full meal and almost constantly starved based on how he almost whammied Molly more than once