While there technically might be more choices available in other places (for instance, in Germany there’s usually at least 2-3 smaller parties that have a legitimate chance to make it into the Bundestag), de facto it still boils down to the two major parties (conservatives and social democrats) duking it out amongst themselves, and voting 3rd party is merely a matter of choosing who their junior partner will be. It might help sway the resulting coalition’s direction on some minor issues but the overall direction is still very much decided by the 500 lbs gorilla.
While there technically might be more choices available in other places (for instance, in Germany there’s usually at least 2-3 smaller parties that have a legitimate chance to make it into the Bundestag), de facto it still boils down to the two major parties (conservatives and social democrats) duking it out amongst themselves, and voting 3rd party is merely a matter of choosing who their junior partner will be. It might help sway the resulting coalition’s direction on some minor issues but the overall direction is still very much decided by the 500 lbs gorilla.