Tasteless humor has been around forever. But there's a special kind of conscience-free cruelty that happens when society tries to use "political correctness" to replace an ethical system ultimately based on individual accountability before a Higher Being.
People know they can weigh the choice whether to conform to political correctness, with limited fallout if they reject it. Their only dissuasion is public shaming from people they probably don't respect anyway.
The other ethical system (call it lower-case c christian) encourages treating every individual with the same respect (golden rule) irrespectively... whether they are disabled, wealthy, ignorant, or famous. IMHO it's healthier to believe you will stand accountable before a God who's motivated by an unchanging standard and love for every person, than to face a thousand arbitrary, usually anonymous, "fairness" judges in a mini-universe of social media.
But maybe those low brow signs were politically correct--it depends on how you profile Dobbs. Political correctness protects identity groups rather than individuals. And some identity groups are politically in-correct, so there's no call for treating those people nicely or respectfully.
If Dobbs is profiled as a victim (genetic disease, racial minority, compromised in appearance, generating dollars without receiving cash renumeration) then the eyebrow jokes are politically incorrect and thus, wrong.
But if the jokes were aimed at Dobbs as a member of the predatory ruling class (male, college football star, BMOC, and potential engineer for a defense contractor/arms dealer) then those jokes are politically correct and deserved.
It's complicated, but that's why political correctness is a hallmark of sophistication. It's incomprehensible to lowly rubes like us, clinging to our guns and Bibles.