@Gbudd What im gettign at is that while the system keeps 2 main parties,it doesnt dictate who those 2 main parties are. In the course of history in america a main party has bee replaced with a third party (and once that happens the old party never becomes a main party again) 8 times. In all examples the third party had <5% support the previous year jumping to majority support the next.
So by all means accept that 2 parties are likely to win. But also accept that who those two parties are can readily switch on a dime. So the logic fails that you know which 2 parties you should vote for. And logic dictates when you have to monumentally unqualified and racist candidates as your 2 party choices that this year, and the next few elections to come stand a very good chance of flipping who those parties are.