That allegation is impossible to prove. Stop using it altogether. It is a wild accusation.
If the goal is genuinely for apolitical questions and answer that is not a realistic goal given that the subject matter is politics.
Consider the question (paraphrased from a media broadcast):
Illegal immigrants in the U.S. disproportionately commit more murder
and rape than anyone else and the Democrats do not want to do anything
about it.
Does evidence support the allegation that Democrats really not want to do anything about illegal immigration?
Not sure if the question would be "well-received" at Politics SE. But that is not the point.
Within the scope of U.S. politics consider the converse question
Illegal immigrants in the U.S. disproportionately commit more murder
and rape than anyone else and the Republicans do not want to do anything
about it.
Does evidence support the allegation that Republicans really not want to do anything about illegal immigration?
In either case the evidence can be posted or not to substantiate or refute the actual substance of the question. It does not matter what the motives of the user who posted the question are. Post the relevant facts at your answer.
There is no way for you to prove the motivation for a question. If five people cite that as the reason it does not make that wild accusation true and correct.
In fact, that wild accusation can be used in a partisan manner to stifle what they view as the other party.
Three proposed solutions:
- First ask the user if their intent is to perform the allegation that is being made.
- Post a community answer to the question which includes that language and cast your upvote for that answer.
- Do not use that description at all. You cannot prove it.