The reason this stuff is acceptable is we just shrug it off as "normal politics". Politicians should not take advantage of emergencies by tacking wish list items on to bills that address the emergency.
What exactly are the unrelated wish list items here? Everything I'm seeing here looks on point and directly relevant to this crisis.
Workers need rights to sick time right now, or the virus will spread even more quickly and this will be worse. People are going to be losing jobs or hours because of this, and if they don't have extra cash they're going to need food assistance. Medicaid is about to get hit hard, just like every health insurance program. The elderly and disabled people are vulnerable groups, and are going to need greater levels of assistance during the coming disruptions.
Not really. They understand what they're doing, this happens because it is a contemporary political strategy in the U.S, it doesn't matter what individual constituents feel about the practice.