I agree. I think it was some sort of blackmail. If he weren’t so scared he could have come out and said the president of the USA was blackmailing him, but he caved. Must have been something really bad.
I reluctantly came to that conclusion a couple months ago. After reviewing his previous opinions, statements during the hearings and what he wrote in the original majority opinion (eventual minority opinion), it is clear he did not arrive at the position he eventually wrote without coercion. It just doesn’t pass the smell test.
One story I read is that they threatened to take away his adopted children on some technicality. Don’t know if it was true or not.