Here are more complex ones:

"[Party A] is actively censoring speech that they don't agree with, calling it misinformation, even though their 'fact checkers' have shown strong political bias. Do you support this?"

and

"[Party B] wants to restrict your right to your body and self-ownership by limiting access to healthcare like abortion and gender affirming care for adults. Do you support this?"

These are the sorts of political "points" that both parties try to score. There are lots more examples.

What's the common theme?

There's an underlying message of "scary authoritarian government controlling me".

I think that most Americans, regardless of political party, have fairly strong antiauthoritarian leanings. I think both political parties attempt to exploit this in political messaging, but neither actually mean it.

By definition, a political party seeks power.

Of course, no one wants to point out their own power-seeking, so the only option is to point out your opponent's.

The sort of authoritarian instincts I was thinking of involve things more like: incarceration camps for people with national origins in the wrong place, immigration policies denying entry to people from the wrong place, ignoring Constitutional separation between church & state to allow "just a little" theocratic bleed-through (imagine if the "church" in question was a mosque), using the army for law enforcement, outlawing more strikes by "critical workers", seeking to restrain the behavior of corporate persons (previously established as subject to the first amendment by SCOTUS) ... and we could go on. Basically, "fascism light" - nothing too horrible, just round one of Pastor Niemoller's famous anecdote.