Trying to build viable third parties by voting for them in presidential elections is like trying to build a third door in your house by repeatedly walking into the wall where you want the door to be.
Especially if you ram that not-door long, hard, deep, and strong enough, really get up in there and penetrate that wall. If you run out of steam you could even switch to an electric appliance, but in that case be gentle (though not too gentle...).
Um.... I'm not sure where this is going, and at this point I'm afraid to continue? 😔
You'll get a boatload of spoiler effect elections until people start voting tactically again. Third parties need to start locally and not participate in the presidential elections for a long time.
There is a path to voter reform by creating hung parliament and require voter reform in a coalition agreement. Once dominant running for governor or a senator becomes possible.