So what you're saying is that you know embarrassingly little about what happened in the March 1933 German federal election...

Spoiler: Hitler won because the fascists slaughtered their political enemies and seized power undemocratically.

If you think that you can avoid something like this by "not voting for the lesser evil", I don't know what to tell you. Until I have reason to believe that the election will be overthrown, I'll be cautiously looking for warning signs (there are some already), and I will vote for the party that isn't openly and proudly spewing Fascism.