Exactly. You want other parties? Make your state switch to RCV first.
Mathematically First Past The Post always locks up to 2 parties and this can’t be fixed without switching to something else (RCV is best, as it gives you provide your first choice (your favorite small party candidate), but you can also specify 2nd, 3rd etc choices as a backup making sure your vote doesn’t spoil and you won’t get someone you definitively don’t want.
You misspelled “change the voting system from First Past the Post to Ranked Choice”
Exactly. You want other parties? Make your state switch to RCV first.
Mathematically First Past The Post always locks up to 2 parties and this can’t be fixed without switching to something else (RCV is best, as it gives you provide your first choice (your favorite small party candidate), but you can also specify 2nd, 3rd etc choices as a backup making sure your vote doesn’t spoil and you won’t get someone you definitively don’t want.