No, I'm saying that any objection to building ramps (in your scenario) would be viewed as evidence that the person raising objections hates people in wheelchair

No, I'm saying that any objection to building ramps (in your scenario) would be viewed as evidence that the person raising objections hates people in wheelchairs. But that example seems much more clear cut and simple compared to a unionization effort. I can think of reasons why people might not want to join a union (e.g., dues) but only very superficial ones for not wanting to build a wheelchair ramp. To be fair, this is a muddled example because Eric Eddings complaints against PJ are more complicated than just "he didn't support the unionization", granted.