The political compass is relative anyways. You are gonna end up in different places, depending on the place and time for which the test was made. For example, here in the Netherlands, the dutch D66 party is considered a centrist party, but I am pretty sure, that, if you made a party with the same viewpoints in the US, it would be considered left wing. Also, a lot of viewpoints, that have no business being either left or right wing, end up getting adopted by one of the 2 sides, and are considered left or right wing from that point on. While, in another country this same viewpoint might be considered one of the opposite side. The only way to really get an unbiased chatbot, would probably be to just not answer anything at all.