Ivanka is a presidential advisor. The left just hates to see women in positions of power.
Yes, I'm aware of mean how happy the Republicans were when Bill had Hillary sitting in on Cabinet meeting and assigned her the job of coming up with a health care bill. How many people said no one voted for her, and Republicans lead the charge in criticizing her.
Liberals aren't opposed to strong women: they nominated one. Republicans showed their respect by calling her names, mostly having to do with her age, even though Trump is older.