For most people the consequences of this action will be too far away to understand the connection, so it’s a pretty good target for the US Republican party.

Barrett doesn’t lose though, their opinion has absolutely no effect on her.

She is either an ideologue, in which case her opinion is all that matters, or she’s up for sale, in which case this can drive up her bargaining price.

Unless she cares what the rabble thinks for some other reason I’m unaware of.